Legend:
Medal Name (Onyx Amount Limit)
Related Stat

EXP:
Bronze
Silver
Gold
Onyx

VENGEFUL (21,474,836)
Versus -> Nemeses Executed

EXP:
500
1000
2500
5000

CAPTOR (2,147,483)
Main [Versus] -> Kills Holding a Captive

EXP:
500
1000
2500
5000

WAR SUPPORTER (71,582,788 )
Main -> Special Events Played

EXP:
5000
10000
20000
30000

MVP (4,294,967)
Ribbons -> MVP

EXP:
1000
2000
4000
10000

FIELD SERVICE (1)
Main -> Rank

EXP:
7500
15000
30000
60000

VETERAN (536,870)
Versus -> Matches Played

EXP:
4000
10000
20000
32000

MATCH WINNER (715,827)
Versus -> Matches Won

EXP:
3250
6500
13000
26000

HEADSHOT (536,870)
Main [Versus] -> Headshots

EXP:
1500
3000
6000
10000

HEAVY WEAPONS (357,913)
Main [Versus] -> Heavy Weapon Kills

EXP:
1000
2000
4000
7000

EXPLOSIVES (357,913)
Main [Versus] -> Explosive Kills

EXP:
1000
2000
4000
7000

FINISHER (357,913)
Main [Versus] -> Executions

EXP:
1000
2000
4000
7000

SKUNKER (858,993)
Ribbons -> Never Had a Chance

EXP:
2000
4000
10000
20000

LEADER (7,158,278)
Ribbons -> Untouchable

EXP:
2000
4000
10000
17500

ABDUCTOR (4,294,967)
Ribbons -> Captiv-ating

EXP:
1000
2000
4000
6000

ASSISTANT (429,496)
Main [Versus] -> Assists

EXP:
1000
3000
7000
13000

MEDIC (1,789,569)
Main [Versus] -> Revives

EXP:
1000
2000
3500
7000

COVER (3,579,139)
Ribbons -> Buttoned Up

EXP:
500
1000
2500
5000

ACTIVE RELOADER (85,899)
Main [Versus] -> Perfect Active Reloads

EXP:
500
1000
2500
5000

LANCER (357,913)
Weapons [Versus] -> Lancer Rifle -> Kills

EXP:
500
2000
5000
10000

HAMMERBURST (357,913)
Weapons [Versus] -> Hammerburst Rifle -> Kills

EXP:
500
2000
5000
10000

RETRO LANCER (357,913)
Weapons [Versus] -> Retro Lancer Rifle -> Kills

EXP:
500
2000
5000
10000

GNASHER SHOTGUN (357,913)
Weapons [Versus] -> Gnasher Shotgun -> Kills

EXP:
500
2000
5000
10000

SAWED-OFF SHOTGUN (357,913)
Weapons [Versus] -> Sawed-off Shotgun -> Kills

EXP:
500
2000
5000
10000

PISTOLS (357,913)
Main [Versus] -> Pistol Kills

EXP:
500
2000
5000
10000

SPOTTER (178,956)
Main [Versus] -> Players Spotted

EXP:
500
1000
2500
5000

PYRO (715,827)
Main [Versus] -> Fire Kills

EXP:
500
2000
5000
10000

SAPPER (2,147,483)
Versus -> Grenades Sapped

EXP:
500
1000
2500
5000

GUARDIAN (1,789,569)
Versus -> Capture the Leader -> Leader Rescues

EXP:
500
1000
2500
5000

CTL (715,827)
Versus -> Capture the Leader -> Matches Played

EXP:
3750
7500
15000
30000

KOTH (715,827)
Versus -> King of the Hill -> Matches Played

EXP:
3750
7500
15000
30000

WARZONE (715,827)
Versus -> Warzone -> Matches Played

EXP:
3750
7500
15000
30000

EXECUTION (715,827)
Versus -> Execution -> Matches Played

EXP:
3750
7500
15000
30000

TDM (715,827)
Versus -> Team Deathmatch -> Matches Played

EXP:
3750
7500
15000
30000

WINGMAN (715,827)
Versus -> Wingman -> Matches Played

EXP:
3750
7500
15000
30000

ALLFATHERS (715,827)
If you have CTL, KOTH, WARZONE, EXECUTION, TDM and WINGMAN on onyx.

EXP:
3000
6000
15000
30000

MASTER-AT-ARMS (357,913)
If you have LANCER, HAMMERBURST, RETRO LANCER, GNASHER SHOTGUN and SAWED-OFF SHOTGUN on onyx.

EXP:
2500
5000
7500
25000

RIFLEMAN (357,913)
If you have LANCER, HAMMERBURST and RETRO LANCER on onyx.

EXP:
1500
3000
5500
15000

HARD TARGET (715,827)
Ribbons -> Last Man Out

EXP:
500
1000
2500
5000

SHOCK TROOPER (715,827)
Ribbons -> First Blood

EXP:
500
1000
2500
5000

OLD SCHOOLER (715,827)
Weapons [Versus] -> Curb Stomp

EXP:
500
1000
2500
5000

BATTLE MISTRESS (2,147,483)
Versus -> Female Matches Played

EXP:
1000
2500
5000
15000

SOVEREIGN (4,294,967)
Versus -> Capture the Leader -> Rounds Won as Leader

EXP:
2500
5000
12500
25000

SPECIAL TEAMS (357,913)
Main [Versus] -> Picked-Up Weapon Kills

EXP:
500
1000
2500
5000

FOR THE HORDE (1)
Horde -> Waves (GPD Editor)

EXP:
1000
2000
3500
5000

HORDER (1,073,741)
Horde -> Waves Won

EXP:
2500
7000
10000
20000

ARCHITECT (7,158,278)
Ribbons -> Founder

EXP:
500
1000
2500
5000

SQUAD LEADER (4,294,967)
Ribbons -> Point Man

EXP:
500
1000
2500
5000

FIELD ENGINEER (2,147,483)
Horde -> Fortification Modifications

EXP:
1000
2000
4000
7500

BIG MONEY (429)
Horde -> Cash Earned

EXP:
500
2500
5000
25000

LOOT COURTESAN (21,474,836)
Ribbons -> Phat Loot

EXP:
500
1000
2500
5000

I'M A BEAST (1)
Beast -> Waves (GPD Editor)

EXP:
500
1000
2000
3000

BEASTLY (3,579,139)
Beast -> Waves Won

EXP:
500
1500
2500
5000

MOTIVATOR (1,431,655)
Main [Beast] -> Revives

EXP:
500
1000
2500
5000

DISMANTLER (715,827)
Beast -> Fortifications Destroyed

EXP:
500
1000
2500
5000

RUTHLESS (1,952,257)
Main [Beast] -> Kills

EXP:
500
1250
2500
5000

INVESTOR (2,147)
Beast -> Cash Earned

EXP:
500
1000
2500
5000

HIGH ROLLER (28,633,115)
Ribbons -> Ready for the Heavies

EXP:
500
1500
3000
6000

KING OF COG (286)
Campaign -> Total Score

EXP:
2500
5000
10000
20000

NUMBER 1 (8,947,848)
Ribbons -> Number 1

EXP:
1000
3000
6000
12000

WARMONGER (1)
Campaign -> Arcade Difficulty (GPD Editor)

EXP:
1000
2000
4000
8000

FORCE MULTIPLIER (21,474,836)
Campaign -> Max Multiplier

EXP:
2500
5000
10000
20000

SURVIVALIST (8,947,848)
Ribbons -> On Your Feet, Soldier

EXP:
1000
3000
6000
12000

AFICIONADO (4,294,967)
Campaign -> Arcade Chapters

EXP:
2000
7500
15000
25000

DOORMAN (1,073,741)
Campaign -> Object Interactions

EXP:
1000
2000
4000
8000

TOUR OF DUTY (1)
Campaign -> Standard Difficulty (GPD Editor)

EXP:
1000
2000
4000
8000

Do Not ...

1) mod Events.
2) mod medal amount to 999 onyx for medals, where you can get the onyx only once.

Medals:
- Field service
- For the horde
- I'm a beast
- Warmonger
- Tour of duty

3) unlock the EPIC employee or developer medal and skins, which can be unlocked with the GPD editor.
4) mod only your level whitout touching all other stats and vice versa.
5) mod stats that don't exist i.e. hammer of dawn reloads.
6) Don't mod and go straight away online. Stay offline a amount of time you would need for getting your modded stats legitimate.
7) Don't mod crazy like 999,999,999 medals, whitout paying attention to stats connected to them. Otherwise the game will freeze.


Do ...

1) Follow my less modding guides below.



Beast Mode
If you plan to mod this mode legit, you should mod all stats from the following tabs: Main, Beast, Weapons, Unlockables, Ribbons, Medals.
I recommend to play some beast waves before you begin to mod. So you can calculate your intersection for the time and the exp you gain for a wave.

Example:
In this example I play five beast waves and write down the needed time and the exp I gained.
Important: Here I play the first wave over and over.

Wave______Needed Time______EXP Gained
1_________1:02_____________180
2_________0:59_____________195
3_________0:58_____________192
4_________1:06_____________187
5_________1:03_____________198

Time Intersection: 60 sec
EXP Intersection: 190 exp

Now I want to increase my beast waves at 2700.
Based on our test we can easily calculate the time we need and how many exp we will earn.

Time we should stay offline, before go online in game: 2700 x 60s = 162000s = 2700m = 45h.
EXP we gain: 2700 x 190 EXP = 513000 EXP.



Less Mod Method:

Following Case:

You play Split-Screen / System-Link with a bud (You physically don't, just imagine)
- Only wave 1 of beast is played over and over.
- You don't die
- You don't make any kills or downs.
- You don't go in cover.
- You don't revive or assist.
- You don't destroy any fortification.
- You do nothing but standing arround with the drone you spawn every wave.

Conclusion: Your bud does all the work = no kills, deaths, time in cover or weapons to mod.
What we need to mod: Waves Won or Waves Lost(If your imagine friend does shit), PlayTime of the drone, also drone Spawns you triggered at the beginning of every wave and of course your EXP.

With this method we need not to mod anything from the main, weapons and unlockables tab.
So we increase the Waves Won and the Drone Spawns stat at 2700.

But don't forget the PlayTime of the drone.
We know the time we need to stay offline and this time in seconds we increase the drone playtime.

Because our bud have sometimes completed the wave with only 1 sec left, we can increase the amount of the "Just In Time" ribbon. Our bud have get this ribbon 27 times. Also 1% of the played waves.

Ok in the end we can increase our EXP at the EXP, we calculated. (2700 x 190 = 513000 EXP).

Done. This method is perfect when you only want to increase waves or rounds in any mode.

Addition:

If you want to mod all or more than the other method you should think about following:

- Play you in coop or not. If yes you can mod assists and revives.
- This time we want to use other beats, get kills, earn cash and destroy some fortifications.
- We want to get the ribbon "Ready for the heavies", means we need to spawn once (or more) with a beast of the last row.
- We want to get the most of the beast medals.

First a little guide for calculating the max onyx amount of all medals.

Gears of War 3 saves all stats in Int32, which means the max value is 2,147,483,647.
That's is the reason why we can't get all onyx medals 999 times.

This easy formula help us: (Max Onyx Amount = Max Value / Onyx Requirement)

Example:
I take the medal "King of COG". Onyx Requirement: Get 7,500,000 points in Arcade.

For Max Value we set (2,147,483,647), because it's always the same.
Onyx Requirement is 7,500,000.

Max Onyx Amount = Max Value / Onyx Requirement
Max Onyx Amount = 2,147,483,647 / 7,500,000
Max Onyx Amount = 286

Make always sure to play a few matches of the mode you modded, doing all kinds of things just the game updates everything again, eventually correcting some mistakes even if you did none.