Counter-Strike: Global Offensive is certainly at the more serious end of Valve's multiplayer services—being about guns and terrorism, rather than gravel or wizards. Nevertheless, they're getting in on the Halloween spirit with the temporary addition of masks, ghosts and zombie chickens.
 
"Each of our hardened operators have decided to have a little Halloween fun by wearing masks," explains the CS:GO blog. Masks are coming across from Payday 2 and Team Fortress 2.
 
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