What I think Survival will be

[Nrublik Mada]

Campaign with no medpacks. I honestly think it is =,[

[Zombie Hunter]

you can do that with consloe commands, so i dont think its going to be that simple

[Plappy]

A hold em off map till help arrives, an official gamemode for it most likely.

[one of them]

You should use this thread: http://www.left4dead411.com/forums/index.php?actio n=vthread&forum=2&topic=9783 (http://www.left4dead411.com/forums/index.php?action=vthread&forum=2&topic=9783)
so we don't start getting thousands of threads about what someone thinks survival mode will be.

And survival mode will most likely be more complex than that...

[SGTPepper]

i'm guessing its going to be more like an extended finale where you spawn already at the finale and have to prep up explosives/barricades and more of an arcade style somehow.. possibly with altered finale maps to make it interesting.