General use arena map v2

this is arena map made for crpg, but you can use it in your mods aswell, changelog v. 0. 6 initial release v. 1. 0 - 11. 4. 2011 -added outter row of tribunes -more scene props for better looking map v. 1. 7 - 5. 6. 2011 -added new underground system of corridors and rooms(including underground arena) -added two new areas, obstacle racing and "highground plank combat" -reworked spawns v. 2. 0 - 22. 7. 2011 -fixed major entry points bug -added outer wall of palisades