Qvark

I don't think making other versions of the maps would be that hard, they already got the terrain design and so on, it's not like they would have to design the maps from scratch. I don't think it would be that great though, maybe like a fun mode to play once in a while.

I'm pretty sure there was some kind of leveling up as well. Maybe that is not character based, but account based?

Unclean Beast seems pretty cool, will definitely be an assassin.