Only thing that should be in it that doesnt exist in normal aq2 is the item packs you have said. Thing is that these packs should be picked before spawning, then you can play with more tactics in your team (those who defend the flag have more armor etc.).
And so that there wouldnt be any "winnin combo's" you could only pick a certain weapon with a certain item pack.
In my opininon 3 packs should do it:
IP. Helmet + Kevlar + Silencer WP: Shotgun, HC, SSG
IP. Laser + Kevlar/Bandolier WP: M4, MP5, Akimbos
IP. Slippers + Kevlar + Silencer WP: MP5, Shotgun, HC
Or there could be like first, and secondary item picking. For example now in normal aq2 there is two things you pick (weapon, item). But in ctf there could be: 1st item (kevlar, bandolier, slippers, helmet) 2nd item (laser, silencer, prolly helmet too) and after that you can choose from some of the weapons, not from all of them.
These are just random suggestions but the one thing i would LOVE is that when you slash someone there would be the sound HUMILIATION!
(it would be a nice add in the normal aq2 too)Gotta love that one..
