Achiever 100 Finish all quests in the game Mystery solved 15 Find all the secret files Obtain level 50 30 Obtain level 50 Obtain level 70 90 Obtain level 70 Siege Hammer 15 Install a total of 5 barricades during hub defense Dream Team 15 Complete all the main quests cooperatively with any number of partners The Collector 15 Find 50% of collectibles The Hoarder 30 Find all collectibles Professional Tourist 30 Find all pages from the guide book Twins 30 Kill the Twins News junkie 30 Find all the volunteer's voice recordings At Your Service 15 Rescue 20 NPCs that have been grabbed by monsters The Hurt Mine Locker 15 Kill 10 monsters with one mine BrainLess 15 Kill 50 monsters by smashing, decapitating or shooting them in the head Hurler 15 Kill 100 monsters with thrown melee weapons Bully 15 Kill 100 monsters with a kick Jetboat 90 Kill 100 monsters using the boat's speed boost Juggernaut 15 Kill 100 enemies using charge attacks Better than the arm 30 Kill 25 monsters with a chainsaw It's an Order 15 Mark 100 opponents which were then killed by your co-op partners. King among Kings 30 Kill special enemies: Grenadier, Thug, Wrestler, Infected, Suicider, Screamer, Butcher, Floater. Hunter-Seeker 90 Find and kill all named champion monsters located in dead zones Secret Achievements Secret Achievement 15 Continue playing to unlock this secret achievement. Secret Achievement 15 Continue playing to unlock this secret achievement. Secret Achievement 15 Continue playing to unlock this secret achievement. Secret Achievement 30 Continue playing to unlock this secret achievement. Secret Achievement 15 Continue playing to unlock this secret achievement. Secret Achievement 15 Continue playing to unlock this secret achievement. Secret Achievement 15 Continue playing to unlock this secret achievement. Secret Achievement 15 Continue playing to unlock this secret achievement. Secret Achievement 30 Continue playing to unlock this secret achievement. Secret Achievement 30 Continue playing to unlock this secret achievement. Secret Achievement 30 Continue playing to unlock this secret achievement. Secret Achievement 15 Continue playing to unlock this secret achievement. Secret Achievement 15 Continue playing to unlock this secret achievement. Source - X360A
