Stun Grenade?
I think it's useless to have a stun and a flashgrenade due to the fact that they have kinda the same effect.
Helmet (Resistance to headshots)
Body Armor (25% Resistance to bodyshots)
Gloves (Faster reload and faster ironsights)
Silencers
Silencers are already in work. I don't really like the "faster reload" idea, it's already a very time consuming work to make the reload sounds fit perfectly to the animations. The "faster reload" would require a second, shorter sound, means much more work. And ironsights are already superfast (no animation for it) :D
But some kinds of body armor are... what about a light, a heavy, and a heavy one with helmet?
-snip-
Remembers me of the short-barrel shotgun idea. thx :3
Update:
M700 Suppressed is done. Pics later, ima too lazy now...