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