PERKS
Tier 1

Lightweight Pro
No fall damage


15 Melee Kills -
Go to Free For All (FFA), Use any pistol to run faster or Use Ballistic Knife. (If you already unlocked Steady Aim Pro, use it to knife faster.)

Escape Death 5 times after getting hurt -
Can be done on any gametype but go to FFA if you haven't done the melee kills yet. Just let them shoot you and run away.
Easy-peasy-lemon-sque... I forgot the rest.

Get 10 Offense Medals by Killing Enemies Near Their Objectives -
Play some Domination, use tactical insertion and hide it near their Objectives and pwn 10 of them from there. Another easy way to get the pro version is to play some Capture The Flag, when the enemy's flag is in your possession every time you kill is an Offense Medal & if your flag is in the enemies' possession, killing them will also count as an Offense Medal.

__________________________________________________________________________

Scavenger Pro
Start with extra mags & replenish Tactical Grenades from fallen enemies.



Resupply 150 times -
Play on Ground War, more people more deaths, more deaths mean more blue bags to resupply with.

Kill 5 enemies with resupplied Grenades -
Throw your first grenade away and quickly resupply your grenades from fallen enemies. Play on Ground War for a higher chance of getting a kill.

Get 5 kills without dying 5 times -
No tips needed here, easy enough for anyone to do. JUST CAMP! (I don't really approve of this.)

__________________________________________________________________________

Ghost Pro
Avoid getting targeted by aircrafts and Sentry Guns. Won't glow if scoped with IR scopes & no red crosshairs or name when targeted.


Kill 20 enemies while they have Spy Plane or Blackbird active -
Play on Barebones Classic, everyone are forced to use Spy Planes.

Destroy 30 aircrafts with any non-killstreak launchers -
Same as above. Shoot them down preferably with Strela-3 launcher, you'll have 2 shots.

Destroy 1 Sentry Gun -
This is a little tricky to get but it'll be easier if you use your own Sentry Gun or SAM Turret killstreak and throw it at the enemies, wait for them to get it & put it somewhere down. After that, destroy it by throwing an explosive or shooting (if far) or knifing it.

__________________________________________________________________________

Flak Jacket Pro
Deflect fire damage and safely toss back Frag Grenades.


Survive 10 explosions -
Play on Demolition OR Domination there will be a lot of explosives thrown at you there. And if you see claymores, run over it.

Plant or defuse 10 bombs -
Works best when playing Demolition. 2 rounds, 2 bomb sites. Higher chance to plant or defuse. OR simply play some Search & Destroy.

Throw back 5 enemy Frag Grenades -
A little hard to get but stick to playing Demolition (OR Domination). Just focus on the other challenges and once in a while, you'll get the chance to get this challenge done. And this is the only time you'll wish a Frag to be thrown on your face.

__________________________________________________________________________

Hardline Pro
Change the contents of a Care Package.


Share 10 reward crates with teammates -
Use Sam Turret, Care Package & Sentry Gun as your killstreaks and play on Ground War. If you get all of the killstreaks, throw it near your teammates or spawn. If you have a headset, tell your teammates to take them. Then kill yourself .. in-game of course! And repeat.

Earn 7 killstreaks in one match -
Replace Sentry Gun for a Spy Plane (3 Killstreak). This should be easy for anyone to accomplish even for them noobs .. MY MINIONS!

Get 7 kills without dying -
This should be done first. Once you get your a Care Package (5 kills) don't kill yourself yet, play carefully to get 2 more kills. Once done, you can then focus on getting the first two challenges.
__________________________________________________________________________

PERKS
Tier 2

Hardened Pro
Inflict extra bullet damage on aircrafts and turrets. Flinch less when shot.


Get 10 kills by shooting through walls - Use LMGs preferably M60 the biggest one for maximum penetration.
(That's what she said.. What? I can't help it.)

Shoot 200 bullets into enemy aircraft - Use your M60, play in Barebones Classic (everyone is forced to use 3, 5 and 7 killstreaks) and start shooting down Spy Planes and Helicopters

Destroy 1 enemy equipment through a wall - Use Hacker which allows you to see enemy equipments. If you see any enemy equipment hidden behind a wall, shoot it.

__________________________________________________________________________

Scout Pro
Pick up, switch weapons & equipments faster.


Get 50 kills with secondary weapons - Play some Free For All (FFA),use Python w/ Speed Reloader, you'll get 2 shot kill in short range.

Get 50 One Shot, One Kill Medals - Play on Ground war.L95A1 or WA2000for a sniper rifle, both are great for One Shot Kills.

Get 30 Headshots - Play on Ground War.I found out when using WA2000 will get you headshots more. You'll get this done faster than both challenges above.

__________________________________________________________________________

Steady Aim Pro
Aim faster AFTER sprinting and recover quickly from knife lunges.


Knife 2 enemies within 5 seconds - Go to Ground War, use pistols to run faster or simply use the Ballistic Knife. Throw Flashbangs or Stun Grenades to where the enemies are & knife 'em!

Get 100 kills after sprinting - Go to Ground War for more people anduse SMGs (AK74u, MAC 11 etc.) to run faster.

Get 150 hip fire kills - Again, Ground War use AK74u w/ Grip or Rapid Fire. Grip actually tightens the spread increases the chance of killing an enemy from long distances.

__________________________________________________________________________

Sleight of Hand Pro
Aim Down Sights (ADS) faster, (except Sniper rifles). Note: This only applies when you walk or don't move NOT after sprinting.


Get 150 kills while ADS - No tips needed here.

Kill within 5 seconds of reloading 30 times - If you see an enemyShoot, quickly reload and kill. Easy-peasy-lemon-squeezy.. Hey, I got it!

Reload and finish off the enemy you wounded 10 times - Play on FFA, if you killed an enemy that went to Second Chance, this is the time to take cover, reload and kill. Or simply throw a Concussion grenade near an unwounded enemy, preferably from behind. Shoot a bullet, reload and Finish Him!
__________________________________________________________________________

Warlord Pro
Start with 1 extra Tactical and Lethal Grenade (except Willy Pete)


Get 150 kills using a gun with two attachments - Use any weapon, which one you are comfortable with, use two attachments and kick some ***!

Get 10 Frag or Semtex kills - Use Scavenger to replenish grenades and start spamming grenades to where most the enemies are.

Get 1 multi-kill with Frag or Semtex - Same as above.
__________________________________________________________________________

PERKS
Tier 3

Tactical Mask Pro
Reduce the effects of Flash & Concussion Grenades. Reveal flashed or stunned enemies' position


Kill 20 enemies that are blinded by your Flashbang - Play inFree For All (FFA) because it is easier to do. If you have Scavenger Pro, then it is now a good time to use it because it'll replenish more Tactical Grenades.

Kill 20 enemies that are stunned by your Concussion Grenade - Same as above.

Kill 20 enemies poisoned by your Nova Gas - Same as above but play on Ground War. Because enemies usually will move together, throw your Nova gas to where most of the enemies are and start shooting! (OR spam Frags and Novas over and over again. It took me 6 matches just to get 20 Nova kills done.)
__________________________________________________________________________

Marathon Pro
Unlimited sprint (AWESOME!)


Sprint 26 miles using Marathon - Run as if a dog is chasing you.. better if its literal.

Get the First Blood Medal 10 times - Best used along with Lightweight because when you start a match you want to be the first one to get to the enemies, and get the first kill.

Get the Flag Capture Medal 15 times - Use Tactical Insertion and hide it near their flag somewhere they can't see it (In buildings, corners etc.). Always guard your teammates when they have the flag, escort & tell them to cover you next time. But if you're evil (Just kidding. Are you?) then follow them from behind, let your teammate get killed, then kill the enemy who killed your teammate and capture the flag! (Play with some friends to make it easier)
__________________________________________________________________________

Ninja Pro
Make no noise and hear enemies louder


Get 150 kills using the Suppressor attachment - Use Galil or Commando, both has the most controllable recoil while using a suppressor. Anduse Ghost for maximum effectiveness!

Get 5 Backstabber Medals - Play on FFA. Use Steady Aim Pro to knife faster or use the Ballistic Knife if you haven't already unlocked it.

Plant 10 bombs - Play Search & Destroy or Demolition. Demolition is better though, because everybody are each given a bomb to plant on each site, unless if you're on the opposing team. But you'll still get the chance once the round switched.
__________________________________________________________________________

Second Chance Pro
Survive longer and get revived by your teammates (To be honest I haven't tried this one yet, never used it. So, no experience here but I'll try if I can give you some tips about it.)


Get 10 kills while in Second Chance -
Use the Python for 2 shot kills.

While in Second Chance, kill the enemy who downed you 5 times - Same as above.

Get 1 Headshot kill while in Second Chance - Same as above.
(Yeah, some tips. Laughing out loud.)
__________________________________________________________________________

Hacker Pro
Sabotage enemy equipments & turrets, booby trap stolen crates and remain invisible to Motion Sensor.


Destroy 10 equipments or explosives - Go to Search & Destroy, it's almost impossible to not see any equipments lying around.

Kill 25 enemies with a Claymore or C4 - Use C4 only because you'll have two C4s instead of 1 Claymore.I find it easier to play in FFA. Stun your enemy with Concussion grenades, throw your C4 at them and detonate. Easy-peasy-lemon-.. Okay, enough I already said it twice.

Kill 25 enemies within the radius of your Jammer or Motion Sensor - Works best in Domination hide your Jammer near any Point, especially Point B. Take cover and shoot the enemies when they are in the green radius of your Jammer, shown on your radar.