Shuttle Siege Achievements Here is the full list of all 6 Shuttle Siege 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 SlayerKill your first boss. CommanderComplete the Campaign. SpecialistBeat the Special Missions. StrategistDefend Headquarters with over 15 lives. ProtectorReach wave 100 in Survival. ChampionTake down the enemy General.