Reach the indicated level in Multiplayer mode to unlock the corresponding bonus: Lurker Range Damage Increase: Level 3 Solid Army Green Suit: Level 4 Stasis Increase to 2 Shots: Level 5 Pack Melee Damage Increase: Level 6 Line Gun: Level 7 Solid Red Suit: Level 8 Spitter Execution Damage Increase: Level 9 Force Gun: Level 11 Puker Ranged Damage Increase: Level 12 Solid Black Suit: Level 13 Plasma Cutter Magazine Size Increase: Level 14 Lurker Melee Damage Increase: Level 15 Solid Olive Suit: Level 16 Seeker Rifle: Level 17 Pack Execution Attack Damage Increase: Level 18 Pulse Rifle Magazine Size Increase: Level 19 Urban Camo Blue Suit: Level 20 Spitter Melee Damage Increase: Level 21 Urban Camo Army Green Suit: Level 23 Puker Execution Attack Damage Increase: Level 24 Line Gun Magazine Size Increase: Level 25 Urban Camo Red Suit: Level 26 Lurker Execution Attack Damage Increase: Level 27 Javelin Gun: Level 28 Force Gun Magazine Size Increase: Level 29 Stasis Increase to 3 Shots: Level 30 Pack Health Increase: Level 31 Urban Camo Military: Level 32 Seeker Rifle Magazine Size Increase: Level 33 Plasma Cutter Weapon Damage Increase: Level 34 Spitter Ranged Damage Increase: Level 35 Urban Camo Olive Suit: Level 36 Pulse Rifle Weapon Damage Increase: Level 38 Puker Melee Damage Increase: Level 39 Rivet Gun Magazine Size Increase: Level 40 Tiger Camo Blue Suit: Level 41 Line Gun Weapon Damage Increase: Level 42 Lurker Health Increase: Level 43 Javelin Gun Magazine Size Increase: Level 44 Tiger Camo Army Green Suit: Level 45 Force Gun Weapon Damage Increase: Level 46 Pack Gets Out of Stasis Faster: Level 48 Tiger Camo Red Suit: Level 49 Seeker Rifle Damage Increase: Level 50 Tiger Camo Military Suit: Level 52 Spitter Health Increase: Level 53 Rivet Gun Weapon Damage Increase: Level 54 War Torn Suit: Level 56 Javelin Gun Weapon Damage Increase: Level 57 Puker Health Increase: Level 58 Visceral Games Suit: Level 59 Additionally, you can unlock the Solid Viral White Suit and Urban Camo Viral Yellow Suit by killing a player that is wearing them.