Im really not that fan of ‘fun maps’, even less of symetrical ones …
Dont want to sound agressive, but heres my pov about your map :
Looking at the screenshots, it just looks like a single room with random stuff put in … no distincts areas, paths, objectives, or whatever, everything happens in the same place and everyone respawn in the same place. In one word : it lacks of a level design.
I understand you just wanted to do a fun map, and I think this can somehow be fun, but just as any mindless deathmatch game would be. However, when you do a map without a level design, dont expect much constructive criticism from forums and mappers, thats kinda like drawing a square and asking people what they think of your creative drawing skills.
Try doing a serious map =)
Nice server btw.