Wow this looks good. Now if only we could figure out a way to incorporate it into Extended Factions.
As far as other factions go, so far the two that you have would both be very focussed on close combat. So maybe a sniper type character? Would be interesting to have a really high damage bow with slow reload but good accuracy and about three arrows. Then take a rooftop position and watch the crowd. Then take your snapshot and hope you get a hit. Cause if you fail then you have to either pick up arrows (There won't be many.) or go and kill them with your little knife.
Anyway good luck and I'd love to help if I can.
EDIT* I said the title should be "Look Behind You..." Although I would also like "Aaaaaaaaaarghhk! Mod."