you can use crowbar only
and Teamplay map.
Each player has 15 lives.
Next, screenshots about the map.
here



Gameplay video:

Download:
http://cid-a1f4611ca1c1f572.office.live.com/self.aspx/Files/Obsidian%20Conflict/Maps/oc^_crowbar^_arena/oc^_crowbar^_arena^_b1^_en.zip
PS: If there are some mistakes in English, I'd like to apologize. XD