When you play Black ops on steam, and you alt tab (online or offline {i forgor}), the stage curtains close and can not be re-opened. But its all visual. The curtains are Functionally open, you can walk through it. So can the zombies. But Visually, the curtain is closed as though power is off.

Well, thats on Black ops 1. This map in Pavlov has a similar bug. Instead of alt tabbing, the curtain bug is present whenever you join a game in progress, after theyve turned on power. I prefer to not join games in progress because the curtain bug has gotten me killed more than once. I wonder if this is even fixable, seeing how Treyarch themselves never got around to it.

I do have a reccomendation though. Maybe make it so the power switch is local to each player. If youre present, and someone flips the switch, power turns on and the curtains open. For any players that join after that, all they must do is Flip the switch again (power stays on, but the curtains move for any player that sees them as closed)

I look forward to a future where this bug isnt an issue. I love joining late game. Its so slow early game that i just feel kinda bored. But in this current version, i can only play this map if i join before power is flipped, or just start my own and hope people join

Thanks for reading,
~Crow