[ADD] ze_volcano_escape_v4

[Evil]

Map: ze_volcano_escape_v4
Location: http://www.gamebanana.com/maps/154300
Reason: This looks like a good map to play on with other users and the zombie mod. I just finished playing it by myself, and it seems like a legit map to play on. Your call.

[ZERO]

I will try to throw it on later today.

[Evil]

thanks. should be fun.