Assault On Metaltron Achievements Full list of all 12 Assault On Metaltron achievements worth 1,000 gamerscore. It takes around 10-12 hours to unlock all of the achievements on Xbox One.Filter Achievement View View Image viewList view Sort by TrueAchievement desc TrueAchievement asc Achievement name desc Achievement name asc GamerScore desc GamerScore asc TA Ratio desc TA Ratio asc Gamers desc Gamers asc Xbox.com order Date won desc Date won asc Flag Filter All None 12 Offline Mode 12 Single Player 9 Main Storyline 2 Cumulative + Link flagsOR joinAND join Achievements without these flags What are achievement flags? Click to find outApply Baby StepsCompleted tutorial stage 1 guideMetaltron FiveCompleted 5 stages Metaltron TenCompleted 10 stages Metaltron FifteenCompleted 15 stages Metaltron TwentyCompleted 20 stages Metaltron Twenty FiveCompleted 25 stages Metaltron ThirtyCompleted 30 stages Metaltron Thirty FiveCompleted 35 stages Metaltron FourtyCompleted 40 stages Metaltron Half-PerfectCompleted 20 perfect stages Metaltron PerfectCompleted 40 perfect stages Tower SkirmishPlayed a skirmish game 1 guide