The Killbox: Arena Combat Achievements Here is the full list of all 12 The Killbox: Arena Combat achievements.Filter Achievement View View Image viewList view Sort by TrueSteamAchievement desc TrueSteamAchievement asc Achievement name desc Achievement name asc TSA Ratio desc TSA Ratio asc Gamers desc Gamers asc Steam order Date won desc Date won asc What are achievement flags? Click to find outApply Leveling Up IReach Lance Corporal 2 Leveling Up IIReach Sergeant 1 Leveling Up IIIReach Captain 1 Leveling Up IVReach Major General 1 Leveling Up VReach Grand Marshal Recruit IDie 5 times in any mode Recruit IIDie 20 times in any mode Gun Master IScore 10 kills in any mode Gun Master IIScore 20 kills in any mode Gun Master IIIScore 50 kills in any mode Gun Master IVScore 100 kills in any mode Gun Master VScore 200 kills in any mode