all the internal walls are randomized, to make it impossible to do the same thing every time, unless you just run over the top, and hope its in your favor, but your on your own
scouts have an advantage, but will be left without back up.
they can't triple jump over the walls,
They can reach the center ring, along with demo and soldier.
engineers can build turrets and dispensers on center ring but not unlimited use transporters(sometimes not even one use), its a bug and i like it. now your trying to work out how, you shoot yourself with your own turret.
Spys can run round constantly cloaked on the ammo packs
snipers, i don't like you so you have a hard time, most vulnerable player.
demo, yes you can trap your explosives in the iris door.
soldier, not many straight line shots available,.
pyro, you can just about burn snipers, be interesting to see
heavy can walk around shooting continuously, be stupid but interesting.
medic have fun finding your patient
incase it ain't added
http://creativecommons.org/licenses/by-nc-nd/3.0/ applies, ask to see vmf, ect