Let's be real, the multiplayer and zombies were the only modes any of us really played. When you all brought your ps3s to your friends house for a lan party at 2am eating taco bell and fighting zombies as former us presidents, you knew it was gonna be a good time until your guts started screaming from the stress of fake meat and constantly hearing "fETcH mEeEe tHEiR SoUlLLLsSS". I know it'll never come to gog, but it'd be kinda cool to see it happen, especially if they released the ability to host multiplayer lobbies.