1. Heal Up
-
Find the first Medical Kiosk and heal yourself.
5G

When you first gain control of the Rookie, look around in VISR mode
(press the X button) for a terminal on the wall with two glowing
packs on it. It also talks, so listen out for it. Simply walk up to
it and your health will be refilled. I got this without even knowing
it. Even if you can?t find it straight away, there are many kiosks
throughout the game you can use, so don?t worry.

2. Tourist
-
Access and download the city map to your VISR.
5G

You get this at the start of the game. Progress a little until you
have to press the Back button to view the map. It will unlock then.

3. Dark Times
-
Kill 5 enemies while using VISR mode.
5G

I got this in Firefight, but it?s also possible to get in campaign.
Just use the VISR (press the X button) and kill 5 different enemies.
Make sure you only use the VISR mode indoors or in dark areas, using
it in an already bright area causes the screen to burst into bright
white light, obscuring vision.

4. Boom, Headshot
-
Get 10 automag headshot kills in any level.
5G

I got this achievement on the very first level. With the Grunt
Birthday Party skull enabled, swap weapons when you start off with
the Y button to equip the automag pistol. You can use another weapon
if you prefer, but I think the automag is easiest.

Go around shooting grunts and jackals (the enemies with shields) in
the head. It?s possible to get the achievement without the skull
enabled, but it isn?t nearly as fun. You can zoom in using the right
stick (just press it in) for extra accuracy. 10 headshots will unlock
the achievement.

5. Stunning!
-
Stun a vehicle with an overcharged plasma pistol and quickly killed
the driver.
5G

Kill a grunt and take their plasma pistol. Find an enemy riding
around in a ghost (purple Covenant vehicle that zooms about
everywhere) and wait till they get close. Hold the fire button (RT)
so that the plasma beam charges, then unleash it on the ghost. It
should temporarily break down. After it breaks down, quickly go and
melee the driver until he dies. If you?re having difficulty killing
the driver in time, try Easy difficulty.

6. Ewww, Sticky
-
Get 5 sticky grenade kills in any level.
5G

Use the plasma and stick grenades (you can toggle the selected
grenades with the LB button). When you throw (LT), make sure you
actually hit the target so it sticks to them, otherwise it doesn?t
count. Go for brutes because they are bigger targets. Make sure you
get all five stick kills in one level, as the counter resets when you
change level.

This achievement isn?t particularly difficult. I find that it?s
easiest to stick brutes right after they throw a stick grenade;
there?s a short time period where they pause still. Take advantage of
this pause to stick them.

7. My Clothes!
-
Plasma Pistol Overcharge and quickly kill 10 Brutes.
5G

For this achievement, fully charge the plasma pistol then shoot a
brute. Melee him down quickly after he?s stunned. You have to this a
total of 10 times. You?ll probably have to use more than one plasma
pistol as they run out of charge pretty quickly.

Note that this also works on jackals if you can?t find any more
brutes. You have to shoot their shield first though, not their
bodies. When their shield breaks, that?s your chance to melee them.

8. Pink and Deadly
-
Get 10 Needler supercombine kills on any covenant.
5G

Supercombine means that they have enough needles jammed in them that
they all explode. Find a needler (grunts and flying enemies carry
them) and aim at an enemy so the reticule goes red. Fire a constant
stream of needles into them until they explode, then repeat. Brutes
are the easiest targets for this and playing on Easy difficulty helps
you kill faster and use less ammo.

9. Trading Down
-
Trade weapons with a fellow character
5G

This is so easy. All you have to do is hold the RB button in front of
a marine to swap weapons with him. You can do this in the Uplift
Reserve mission. One thing to consider is that you can?t trade
weapons if your weapon has no ammo. You also cannot trade a weapon
for another weapon of the same kind (an assault rifle for an assault
rifle etc).

10. Headcase
--
Finish any level with at least one Skull activated.
5G

This achievement is done in campaign. Activate any skull you wish
(toggle them on and off in the skulls menu in the campaign lobby) and
complete a level. Silver skulls have no negative effects, and are
pretty funny, so try them over Gold skulls for an easy time.
Obviously it will be easier to complete on Easy difficulty but it?s
your choice which difficulty you play.

---------------------
Campaign Achievements
---------------------

You unlock the campaign achievements as you complete each level.
There are 8 levels in total. If you are just out for the
achievements, Normal difficulty will be your easiest bet. After
completing the game on Normal, I recommend you play through the game
on Legendary difficulty with three other friends. That way you will
unlock all the campaign achievements whilst minimizing difficulty. If
you do want a challenge, feel free to attempt Legendary solo, or with
one friend split-screen.

You get the Campaign Complete: Normal, Campaign Complete: Heroic and
Campaign Complete: Legendary achievements when you complete the game
on Legendary, so you may as well not bother playing the campaign on
Heroic difficulty. Completing any level on Easy difficulty does not
unlock the following campaign achievements.

11. Tayari Plaza
--
Complete Tayari Plaza on Normal, Heroic, or Legendary to unlock a new
Firefight character.
30G

Complete the Tayari Plaza level. This is the first level
chronologically. Look for the Recon Helmet clue to begin the level.

12. Uplift Reserve
--
Complete Uplift Reserve on Normal, Heroic, or Legendary to unlock a
new Firefight character.
30G

Complete the Uplift Reserve level. This is the second level
chronologically. Look for the Drone Fighter Optics clue to begin the
level.

13. Kizingo Boulevard
--
Complete Kizingo Blvd. on Normal, Heroic, or Legendary to unlock a
new Firefight character.
30G

Complete the Kizingo Boulevard level. This is the third level
chronologically. Look for the Gauss Turret clue to begin the level.

14. ONI Alpha Site
--
Complete ONI Alpha Site on Normal, Heroic, or Legendary to unlock a
new Firefight mission.
30G

Complete the ONI Alpha Site level. This is the fourth level
chronologically. Look for the Remote Detonator clue to begin the
level.

15. NMPD HQ
--
Complete NMPD HQ on Normal, Heroic, or Legendary to unlock a new
Firefight character.
30G

Complete the NMPD HQ (New Mombasa Police Department Headquarters).
This is the fifth level chronologically. Look for the Bio-Foam
Canister clue to begin the level.

16. Kikowani Station
--
Complete Kikowani Station on Normal, Heroic or Legendary.
30G

Complete the Kikowani Station level. This is the sixth level
chronologically.

17. Data Hive
--
Complete Data Hive on Normal, Heroic, or Legendary to unlock a new
Firefight mission.
50G

Complete the Data Hive level. This is the seventh level
chronologically.

18. Coastal Highway
--
Complete Coastal Highway on Normal, Heroic, or Legendary to unlock a
new Firefight mission.
50G

Complete the Coastal Highway level. This is the eighth and final
level chronologically.

19. Campaign Complete: Normal
--
Complete the Campaign on Normal difficulty.
100G

For this achievement, you have to either complete the entire game on
Normal difficulty solo OR co-op. You cannot, for instance, do the
first three missions solo then do the rest in co-op. It must be
consistent. Completing the game is not particularly hard solo, but if
you really have problems, get some friends to play. It took me around
6 hours my first go.

Oh, and just so you know, this achievement literally took about 5
minutes to actually pop up for me after the credits. I?m pretty sure
you can complete levels on Normal, Heroic or Legendary (but not the
full game, seven level Normal and one Heroic for example) and that
will count. Just make sure that every level has been completed on at
least Normal difficulty.

20. Campaign Complete: Heroic
--
Complete the Campaign on Heroic difficulty.
100G

Although this is supposed to be ?the way Halo is meant to be played?,
I always do a Normal playthrough then a Legendary one. You get the
Heroic achievement when you complete Legendary, so it?s pretty
pointless really.

21. Campaign Complete: Legendary
--
Complete the Campaign on Legendary to unlock a new Firefight
character.
100G

This achievement is not as hard as you may think. It?s so much easier
if you work together as a team of 4 in co-op. Make sure at least one
of your team stays out of the fighting so people can respawn when
they die. This is by no means as difficult as previous Halo games on
Legendary.

Make sure you complete every single level co-op (or solo if you don?t
have LIVE). You can?t have the first half finished solo and the last
half finished co-op. Make sure that nobody quits or enters the level
midway through, as this disrupts everything. For example, one of my
teammates quit on the last level, then another guy joined and we
completed the level. Even though I finished the entire level, it said
I didn?t because we were interrupted. This achievement may take a
while to pop up.

-----------------
Clue achievements
-----------------

22. Junior Detective
--
Find the first clue unravelling the mystery.
10G

Clues are the glowing yellow items you examine with the RB button to
start a flashback mission. This achievement will unlock as soon as
you begin the first mission (Tayari Plaza). I do believe the first
?clue? is the recon helmet. This unlocks when you find any clue,
regardless of the level, however.

23. Gumshoe
--
Find the 3rd clue unravelling the mystery, alone or with another
ODST.
10G

You should get this achievement at the start of Kizingo Boulevard;
just examine the bent sniper rifle hanging on the wires in the beacon
zone (look up!). You need to have completed Tayari Plaza and Uplift
Reserve first. This unlocks when you find any three clues, regardless
of the levels they are, however.

24. Super Sleuth
--
Find the final clue unravelling the mystery, alone or with another
ODST.
10G

This unlocked for me at the beginning of Kikowani Station. To get it,
you much find all the clues. The game tells you where to go when you
press up on the D-pad, the ?correct? order you are supposed to
complete the levels in is Tayari Plaza, Uplift Reserve, Kizingo
Boulevard, ONI Alpha Site, NMPD HQ, then finally Kikowani Station.
You can, however, complete them in any order. Do make sure, however,
that you do these levels consecutively, and by that I mean do not
replay any levels from the campaign lobby before you complete the
game.

---------------------------------------------------------------------

25. Wraith Killer
--
Kill all Wraiths in Uplift Reserve
5G

For some reason, this only worked for me if I destroyed them with the
warthog chaingun. Anyway, there are 6 wraiths (big purple covenant
vehicles which fire big blasts of energy). Go through the level
destroying them, taking care not to miss any. Since the wraiths are
pretty formidable, I recommend Easy difficulty.

Make sure you destroy them yourself: don?t let any marines kill any
otherwise you won?t be able to get the achievement.

26. Both Tubes
--
Get 10 Rocket kills on Kizingo Boulevard.
5G

Once you start, find the big group of Covenant (5-7 enemies). Shoot
one rocket then trade up with a marine for another weapon. Kill the
marine and take the rocket launcher back. You should have 3-4 rockets
now, more than enough for another 3-5 enemies. Just aim for large
groups of grunts and jackals and you should be fine. You can repeat
the trade as many times as there are marines, so if you only have one
rocket left but need more kills, trade it to another marine, kill him
then take it back. It should have refilled again, so ammo isn?t an
issue.

I also got this strategy from AnimeGURU475, which works brilliantly:

?Once you have the tank and have cleared out the entire first area
(the area you spawn in) go back to where you spawned and there should
be 2 people who both have rockets. This might be different depending
on what happened during the fight, but this is where they were for
me. Anyway let them get on your tank. They'll ride around on the tank
and anything they kill with their rockets counts toward the
achievement! They also seem to have infinite rockets as I'm pretty
sure mine fired over 10 rockets before dying. This makes the level
pretty easy even on Legendary as you have your tank and double
rockets pwning everything.?

This is a great method and I suggest you use it; it beats having to
betray your own teammates for ammo.

27. Laser Blaster
--
Get 10 Spartan Laser kills on ONI Alpha Site.
5G

You begin this level with a Spartan laser. A very easy way to get
this achievement is to laser the wraiths at the beginning of the
level. Each wraith counts for three kills, so you only have to kill 1
more enemy with two shots left.

Kylito757 sent in this concerning the wraiths: ?The best place to
shoot is when all the enemies drop from the phantoms. There are
reasonably sized groups there, so zoom in and laser away at them.
Just try and get as many kills per shot as you can.?

Banshees count for 2 kills each, too, so look out for those. Be
careful to aim at them properly as they?re fast and may zoom out of
your line of fire. Three wraiths and a banshee and you have it. If
you miss some, just progress through the level and laser one more
enemy. There are plenty of enemies dropped off by Phantoms for you to
kill later in the level. If you are low on ammo somehow, there is
also another Spartan laser on this level, so you only REALLY need to
get one kill per shot (more kills will get you it faster, however).

If you run out of ammo, try these tips:

From Sned 08: ?Just thought I'd tell you, there was, at least when I
played, a second Spartan laser up in the tower, or another marine had
one. I know if someone's not good enough to get doubles with every
shot, they could at least get one with every shot.?

From Desmo: ?I found a spare Spartan Laser laying on the ground on
the far left side of the field immediately next to the building that
is used for the next Firefight. I am not sure if this laser is there
every time or not, but it is worth checking out.?

From Kiyotie: ?The best way, Imo is to start out with the picking off
the brutes/grunts as they come across the bridge, there?s a second
laser at the top by the barricades. If you?re running up the hill it
will be to your left laying on the ground in the back corner. When
the drop ships come in, target grunts, they run in groups of 3-4 and
their methane tank explosions take out others, I did this on my
Heroic solo play through and got the achievement with laser power to
spare, well after completely draining one.?

28. Dome Inspector
--
Get 15 headshot kills on NMPD HQ.
5G

You start out with a sniper rifle on this level. Zoom in (you can do
this twice) by pressing in the right stick for extra accuracy. Try
not to headshot brutes if you?re on higher difficulties because they
take more than one shot. Instead, try and headshot the grunts and
jackals. If you run out of sniper ammo, use the automag pistol. It?s
also probably a good idea to enable the grunt birthday party skull if
you go for the grunts.

29. I Like Fire
--
Kill 10 enemies with the Flamethrower on Data Hive.
5G

The flamethrower is located in the corner of the iced area, behind
some glass. I?m referring to the thick iced door area, not the long
chilled corridor. The ice gets noticeably thicker, and there?s a
locked door. From the door, search around the corners opposite and
left of it to find it. Kill 10 enemies with it, the flying bugs go
down easiest. Even just tapping the trigger once will kill a brute so
ammo isn?t an issue; go crazy with it! If you can?t find it, try
YouTube, since I?m so terrible at describing where things are, sorry!

---------------------
Engineer achievements
---------------------

30. Good Samaritan
--
Do not kill any engineers at night in New Mombasa, alone or with
another ODST.
20G

Engineers are the shielded flying creatures that don?t attack you.
They appear now and again throughout the streets of New Mombasa. This
achievement requires you to completely ignore them until Data Hive.
If it explodes by itself, and no achievement progress counter (for
Naughty Naughty) pops up, you?re fine. On the other hand, if the
counter pops up, you can?t get the achievement on your current
playthrough anymore. Just avoid them at all costs and try to be
careful where you aim/throw grenades.

31. Naughty Naughty
--
Kill 10 Engineers in the city at night, alone or with another ODST.
5G

The opposite of Good Samaritan, this achievement requires you to kill
10 engineers. The best weapon to use is the plasma pistol (charged),
then switching to the silenced SMG to finish them. I found plasma
grenades to be very effective too. Be quick to kill them though, as
they can kill themselves to prevent you from killing them. Best to be
on Easy difficulty, the enemies in proximity to the engineers will be
easier to kill; it?ll save some time for you.

Here is a map of their locations:

[ Register or Signin to view external links. ]

I don?t take credit for this map, I didn?t make it and it doesn?t
belong to me.

I found that with this achievement, when backtracking to areas with
engineers I?d already killed, they had respawned. This enabled me to
miss one of the areas completely, as I?d already killed two new
engineers in places I?d visited twice.

----------------------
Audio Log Achievements
----------------------

32. Listener
--
Find the first Audio Log.
5G

Listener is an easy achievement. All you have to do is find a glowing
yellow outline on some buildings (usually little booths) and hold the
RB button next to it. They are scattered across New Mombasa and you
have to use your VISR (press the X button) to see the yellow outline.
See Audiophile.

33. Tuned In
--
Find 3 Audio Logs, alone or with another ODST.
15G

This is just like Listener, but you have to find more. You should
find them with no problems. This achievement only requires that you
find 3 out of 30 logs; they?re common enough so just search the city
for them. See Audiophile.

34. All Ears
--
Find 15 Audio Logs, alone or with another ODST.
30G

You should get this halfway into the Audiophile achievement; just
carry on finding those logs! See Audiophile.

35. Audiophile
--
Find all Audio Logs, alone or with another ODST.
75G

This achievement requires you to find all 30 audio logs; 29 are
located in the streets of New Mombasa and the last is located in Data
Hive once you have all the others. It?s better off to search for them
solo, you can use this map to help you find them without searching
for hours and hours (it took me about 2 and half hours, and I?m very
slow):

[ Register or Signin to view external links. ]

The map is not mine; I don?t take any credit for it.

Once you have all 29 audio logs, save and quit the game. Go to the
campaign lobby and start the Data Hive level (confirm your campaign
progress will be deleted but your audio logs wont). Progress until
you drop down the second hole. Usually the guy gets eaten by flying
bugs (lol) but this time he doesn?t. You should get to an icy door
(near the flamethrower). When he goes inside and tells you to wait
there, go inside and grab the final audio log. Watch out though, as
when you grab it, the guy goes crazy and starts attacking you.

Another method of getting Audiophile is to join another person?s game
over LIVE just before they are about to pick up their final log. You
will also get the achievement, even if you didn?t pick up any logs
before this one.

If you plan to try and get this achievement co-op, you need to
collect all 29 New Mombasa logs then complete the campaign missions
until you can access the Data Hive level for the final log.
Collecting all 29 then quitting and selecting Data Hive from the
Campaign lobby doesn?t work. That?s why I suggest going for this
achievement solo.

Also:

Audiophile
Audio file
---------------------------------------------------------------------

36. Be Like Marty
--
In Firefight, finish a full round without killing a single enemy.
10G

Get at least one friend (preferably 3) to play Firefight with you and
DO NOT KILL ANYTHING. This is obviously easiest on Easy difficulty.
I?m pretty sure shooting or throwing grenades doesn?t disable the
achievement provided you don?t actually kill anything. Just wait for
your friend(s) to get to the second round. One round is 5 waves, so
it shouldn?t take too long.

Alternatively, you can use Jim?s method:

?I just got the Be Like Marty achievement using split screen
multiplayer. I signed in as a guest and did all the fighting using
the guest. On alpha site, I just hid my player to the corner and hit
the back button to bring up the overhead map. I had a constant view
of the battlefield on the upper screen and did all my fighting with
the lower screen. I got the achievement in one try on easy. You can
get the achievement without annoying your friends.?

This method works just as well, so it?s really a matter of
preference. Of course, having three friends to help will obviously be
easier than doing it yourself.

The name of this achievement is a play on the word martyr and a
reference to Martin O?Donnell, who composes a lot of Bungie?s music.

----------------------
Firefight Achievements
----------------------

The Firefight achievements require you to reach 200,000 points on
each level. The best way to do this is to get a party of 4 people and
stick together. If you?re confident, you may want to try Legendary
difficulty, if you?re not very confident at all, try Normal. Heroic
is tough but manageable. The higher the difficulty, the faster you
get the achievement. If you?re going solo, stick to Easy (or Normal
if you?re good) difficulty. Good luck.

---------------------------------------------------------------------

Firefight tips
--------------

Headshots earn you extra points. Always try and go for headshots.

Try and earn as many medals as you can (assassinations, needler
explosion kills, killing so many enemies without dying etc), as these
increase your score.

Each level has one or more power weapons you can use, which respawn
at the start of each new round (rocket launcher, sniper rifle,
Spartan laser). Make use of these, and try and save them for the
hammer/fuel rod cannon guys.

Wraiths are dropped by phantoms most rounds. Killing wraiths is a
great way to get points. Either throw lots of grenades (sticky ones
work best, fire has little effect), use the rocket launcher/fuel rod
cannon/Spartan laser or you can grab onto it using RB and either
melee it (4-5 hits) or plant a grenade, which destroys it completely.

Earn extra lives every new round and try to score the required amount
of points in bonus rounds for even more lives. You get as many lives
as there are players. If you are you playing with 3 other people,
you?ll get 4 lives at the beginning of every new round, but if you?re
only playing with 1 friend you?ll only get 2 lives etc.

Oh, and the waves work like this:

-Each bar is 1 wave
-Each circle is 1 round (5 waves)
-Each set is 3 rounds (15 waves, plus a bonus round)
-Each bonus round is only 1 wave in length, even though it?s called a
round

Wave = /
Round = O
Bonus round: |

///// = O
O O O | = ///// ///// ///// |

---------------------------------------------------------------------


37. Firefight: Crater
--
Score over 200,000 points in Firefight on Crater.
10G

38. Firefight: Lost Platoon
--
Score over 200,000 points in Firefight on Lost Platoon.
10G

39. Firefight: Rally Point
--
Score over 200,000 points in Firefight on Rally Point.
10G

40. Firefight: Security Zone
--
Score over 200,000 points in Firefight on Security Zone.
10G

41. Firefight: Alpha Site
--
Score over 200,000 points in Firefight on Alpha Site.
10G

Don?t go for this one on purpose; just do the Endure Vidmaster
achievement on this map and you?ll get it no problem, usually around
2 hours into the match.

If you already have Endure on another map, or you just want to get as
many points for Alpha Site or whatever, you can use this strategy
sent in by darthstraka:

?I've found that saving the Rocket Launcher and Fuel Rod cannon for
the Bonus Rounds can be a big boon to both the Endure and 200k
achievements for this level.

All you have to do is, once the Bonus Round starts, aim for the air
vents above the platforms on the elevator shafts. The Grunts pour
out of these, and you can quickly get Killionaires and several
thousand points towards the 200k. I got an individual bonus of over
18,000 with just one rocket (I knew this was the case, since I had
been going for the Be Like Marty achievement). It also thins out the
herd of Grunts, and makes surviving their grenades much easier.?

42. Firefight: Windward
--
Score over 200,000 points in Firefight on Windward.
10G

43. Firefight: Chasm Ten
-
Score over 200,000 points in Firefight on Chasm Ten.
10G

44. Firefight: Last Exit
-
Score over 200,000 points in Firefight on Last Exit.
10G

-------------
Road to Recon
-------------

45. Vidmaster Challenge: Classic
--
Finish any level solo on Legendary, on LIVE, with no shots fired or
grenades thrown.
25G

This one is pretty difficult if you don?t know what you?re doing.
Firstly, under no circumstances should you shoot, throw a grenade or
use any weapons (turrets for example). Other than this, feel free to
splatter, melee, hijack and use the warthog (gunners are fine).

Classic is easiest on the Uplift Reserve level. Grab a warthog (don?t
beep the horn or power slide as it disables the achievement) and rush
past the two wraiths (took me like 20 tries). After the last wraith,
grab the ghost and zoom through the level.

You must be connected to LIVE and you must be on Legendary
difficulty, needless to say. I accidentally threw a grenade, then
died and restarted from the checkpoint. I continued and beat the
level and I still got the achievement. This means that you can still
fire and throw grenades by accident then die on purpose to reload the
checkpoint.

46. Vidmaster Challenge: Endure
--
In Firefight, on any mission, pass the 4th Set on 4-player Heroic
LIVE co-op.
25G

This achievement is very tough. It took me 4 tries to complete (and I
stayed up till 3am adamant to get it). You?ll need three other
teammates to help. Set it to Heroic difficulty and the best map to
use is Alpha Site. You have to fight though 60 waves of enemies for
this achievement, which will probably take around 3 hours.

I take no credits for this guide