Battle Los Angeles

Gemcheats There are 7 Bronze Trophies, 4 Silver Trophies, and 1 Gold Trophy.
Color Me Impressed (Silver)
Complete a mission on Normal without dying, failing, restarting, or continuing campaign
Droppin Bombs (Bronze)
Call in the airstrike to defeat the Command Center
Hummer (Silver)
Kill 15 enemies on the HMV turret
Kaboom (Bronze)
Destroy the gas station
Long Range (Bronze)
Kill 20 enemies with a sniper rifle
One Hundo (Gold)
Unlock all the unlockables
Pool and Dive (Bronze)
Survive the pool attack
Private (Bronze)
Complete the game on Easy Difficulty
Rocketman (Silver)
Kill 2 aliens with one Rocket
Seen Your Video (Bronze)
Watch an unlocked video
Sergeant Major (Silver)
Complete the game on Hard Difficulty
Staff Sergeant (Bronze)
Complete the game on Normal Difficulty Download to complete cheats.