Treyarch’s 2008 hit, Call of Duty: World at War (colloquially Call of Duty 5 or COD5) has been an enormous success online as hundreds of thousands of users play every day. The breakout phenomenon of the game has been the “Nazi Zombies” mode, which features the weapons and perks of COD5 with a horror twist and a unique meta-plot. This mode has generated its own massive audience and some playe... more.