Here is the full list of all 12 Crackdown 3: Wrecking Zone achievements worth 500 gamerscore.
Got MVP (Highest Score on Winning Team) in Agent Hunter
Captured 100 Territories
Completed a match without dying
Dealt a large amount of damage to buildings in a single match
Won a match
Killed an entire team in a single match
Got a melee kill
Win 20 matches
Reach 100 kills
Secure 100 badges in Agent Hunter
Get a kill with every weapon in a single match
Get MVP (Highest Score on Winning Team) in Territories