I got this in Social Games, Custom Playlist, 1v1, Halo 2: Anniversary (2 gold icon), Precision Slayer. This can easily be boosted with a friend.
You are on fire, my man :D
Yeah, only have 2-3 days to play during this containment thingy so i'm making the most of it !
Earn 100000 Credits lifetime - Gears of War 4
Complete 50 consecutive waves of Horde as Sniper on Ironman (Hardcore or higher) in a squad - Gears of War 4
Complete 50 consecutive waves of Horde as Heavy on Inconceivable in a squad (any map) - Gears of War 4