How Long is the Game?

[archaic frost]

I rented this, and have to return it pretty soon. I don't really care about getting the full 1000, but approximately how long does it take to run through the game?

I just started the "commuter tracks" level, so how much longer would it take to finish it off? (I probably will use the superguide from mycheats so i don't miss anything and don't get lost, which will probably speed it up)

Thanks.

[professor smoke]

11 levels, havnt completed it yet so i dont know how long it takes.

ps if anyone can tell me how to fix my sig thatd be sweet.

[Don Manolo]

I just got my last achievement in this game in 7 days... And I even had to restart my campaign after reaching the last mission and having 600 kills online due to a glitch that makes your save for some reason unreadable...