I'm sorry but I just don't see how this character would fit into Killing Floor... sounds more like a TF2 character. Oo
A dual wielding gunman (pistols and revolvers) so far has been my favorite. I mentioned that to someone I play this game with, and they said if they added it they'd max it out and play it every day.
So far they have all the major weapon classes covered accept a dual wielder, I never really felt like the pistols really fit in with the sniper... I think they were just looking for a character to make use of the pistols with and figured the sniper was the best one of the lot.
What I'd like to see is the sniper getting more sniper weapons, the pistols handed off to a pistol specific class with more pistols and revolvers added, then *maybe* (and I really stress maybe!) a character that specializes in advanced prototype Horizon weapons, then later down the road tougher challenges added, more styles of game play, and when the game gets challenging enough, a new higher tier of advanced weapons for every class.