Tower is a vertical L4D2 survival map. Answer the radio at the top, but watch out for tanks!
A departure from the L4D1 map I have also posted...the goal was to design an environment that encloses players horizontally but not vertically but also introduces the danger of heights; there are multiple routes around and through the tower to evade and fight the infected. Even though the hordes may be slow to reach you at the top of the tower, tanks and chargers can be deadly...
The current version is .9 and is essentially complete; but any and all feedback/suggestions would be appreciated for any potential future versions.
I'd give it a go except I don't have L4D 2 :< Only 1.