CS:GO has teamed up with Halo, to bring users a Halo-themed sticker collection. Halo Reach was recently added to the Steam Marketplace, and the sticker collection helps advertise the game.
Valve is now frequent updating CS:GO, as seen in the Operation Shattered Web update. This update brought players new player models, skin collections and maps.
This is the first instance of CS:GO collaborating with major gaming titles. Perhaps there will be more similar updates in the future, but only time will tell.
