Gears of War 3 achievements

Complete all Acts in Co-op on any difficulty.

Earned the Bronze "Loot Courtesan" medal.

Earned the Onyx "War Supporter" medal.

Completed all campaign Acts on Hardcore Difficulty.

Earned an Onyx medal.

Reached level 25.

Your skill and experience means you’re ready for Standard Versus multiplayer.

Completed the first 12 waves of Beast.

Killed 10 enemies in Team Deathmatch.

Executed an infected player and is now turning Lambent.

Survived the first 10 waves of Horde.

Reached level 15.