I think i did an ok job on this but what do you think? it was intended for small deathmaches. there are a few treasure chests each with a weapon or health that disappear for an amount of time when used, as well as some explosives in the tunnels that are activated by clicking the red box with the lever on top, it has a re-spawn time as well.
I didn't bother making the outside look good as you shouldn't be going out there anyway if your DMing
Pic

Opinions?
I will add the save if you want it. http://www.mediafire.com/download.php?j2jxyzmygm2edit: added save cuz i dont want to take more pics
and if you want to tell me how to make the link say Download instead of ^that^ let me know please thanks