Suggestion: Survival mode

[Gish]

It would be neat for there to be a few survival maps were the objective was to survive as long as possible agienst increasingly harder waves of enemies. I would really like to see somthing like this.

[Edmund]

Make it

[DaKiller]

Yeah, it shouldn't be too hard to make that yourself.
The only problem would be that the level would eventually come to an end.