Halo: Spartan Assault Achievements Here is the full list of all 25 Halo: Spartan Assault achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.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 Flag Filter All None 25 Offline Mode 25 Single Player 6 Main Storyline 2 Cumulative + 1 Shop Link flagsOR joinAND join Achievements without these flags What are achievement flags? Click to find outApply OverrunComplete Operation A Switched OnComplete Operation B Switched OffComplete Operation C EvacuatedComplete Operation D TerminatedComplete Operation E Escort ServiceKeep all Wolverines intact in Operation A, Mission 3 1 guideNowhere to HideFinish the mission without any Jackal regenerating its shield in Operation B, Mission 3 Never Knew What Hit ThemKill a convoy target with every stationary gun in Operation C, Mission 3 Brute ForceFinish the objectives using only the Brute Shot, melee and grenades in Operation D, Mission 1 Foot SoldierFinish the objective without using any vehicles/turrets in Operation E, Mission 4 RecruitEarn a star of any type in an operation mission ProdigyEarn your first Gold star in an operation mission 117Earn all Gold stars in all operation missions Pension PlanEarn 25,000 XP throughout your career Distinguished ServiceEarn all medals in the campaign at least once Weapon of ChoiceScore a kill with every handheld weapon in the campaign Powered by MJOLNIRUse every ability in the campaign at least once Skull ComboComplete any campaign mission with the maximum number of Skulls active Vidmaster ChallengeComplete Operation E, Mission 1 with the Hollow and Black Eye Skulls active Extra CreditComplete all campaign mission specific Assault Ops in campaign A to E ArcheologyComplete Operation F SilvertipDestroy all Mega Turrets with the Grizzly tank in Operation F, Mission 2 Tour of DutyEarn all Gold stars in Operation F Vidmaster Challenge 2.0Complete Operation F, Mission 4 with the Blind and Thunderstorm Skulls active A for EffortComplete all Operation F mission Assault Ops