The Onslaught Game Mode Add-on for Resident Evil 6 (PS3) has 5 trophies - 2 bronze, 2 silver and 1 gold.
Defeat your opponent and achieve victory in 3 stages.
Send 2,000 enemies to your opponent's map.
Defeat your opponent 10 times with enemies you sent.
Win while in the dying state.
Achieve a 30-combo chain.