Complete Level 1 in any difficulty mode

Complete Level 2 in any difficulty mode

Complete Level 3 in any difficulty mode

Complete Level 4 in any difficulty mode

Complete all 4 Levels in 'Normal' difficulty mode

Complete all 4 Levels in 'Nightmare' difficulty mode

Complete any Level, in any difficulty, using only the Piranha

Complete any Level, in any difficulty, in a 4-player co-op game

Obtain Rank 5 in all 4 XP categories

Obtain Rank 10 in all 4 XP categories

Obtain all Weapons Awards

Kill 10 enemies in a row with the Piranha without dying

Kill 10 enemies in a row with the Firefly without dying

Kill 10 enemies in a row with the Barracuda without dying

Kill 10 enemies in a row with the Reaper without dying

Kill 10 enemies in a row with the Chimera without dying

Kill 10 enemies in a row with the Manticore without dying

Kill 10 enemies in a row with Grenades without dying

Kill 10 enemies in a row with Adhesive Grenades without dying

Kill 10 enemies in a row with the Guardian without dying

Kill 10 enemies in a row with the Melee Attack without dying

Kill 10 enemies in a row with the Shockwave without dying

Win a Team Deathmatch round with 10 kills and zero deaths

Win a Deathmatch round with at least 50 kills

Kill 15 enemies in a row without dying or being incapacitated

Kill 20 enemies in a row without dying or being incapacitated

Kill 25 enemies in a row without dying or being incapacitated

Kill 30 enemies in a row without dying or being incapacitated

Kill 4 enemies simultaneously with a Grenade

Kill 4 enemies simultaneously with an Adhesive Grenade

Kill 4 enemies simultaneously with the Shockwave Ability

Revive an incapacitated Player 10 times in Campaign Mode

Capture the Flag 3 times during a Capture-The-Flag round

Win a Capture The Flag round with 10 kills and zero deaths

End an enemy Player's killing spree

Kill an enemy Player after you die

Get the killing blow on the Banshee

Get the killing blow on the Digger

Get the killing blow on Lilith

Complete Level 1 in any difficulty mode without being incapacitated

Complete Level 2 in any difficulty mode without being incapacitated

Complete Level 3 in any difficulty mode without being incapacitated

Complete Level 4 in any difficulty mode without being incapacitated