I've mustered a few ideas for the new UGX mod, thought I'd drop 'em on you.

1. Royal Flush Perk-a-cola
     -Has a nice, Art Deco design, poker themed.
     -Increases power up drops slightly, but more prominently double points.
2. Mossberg M590
     -Pump action combat shotgun
     -Very versatile and attractive, could be used as a replacement for the Olympia as a starting weapon. (M590 and the G3)
3. Custom grenades (Replace fragment grenades if possible)
     -Incorporates new elemental system
     -Wind grenade, works like a weakened thundergun, but pushes in all directions
     -Freeze grenade, slows zombies, freezes a zombie if it hits the thrown grenades
     -Incendiary grenade, yes there is a molotov, but this functions the same, but with a bit more power and incinerates a zombie if it hits the thrown projectile
     -Electric grenade, momentarily paralyzes zombies, plays electrocution anim. on affected zombies

Post your feedback in the replies, how any of these are obtained is up for debate. Go wild!

The electric grenade seems nice.

1. Seems like a cool idea, I just don't know if we have time to do it.
2. I would love to model and animate the blackwater version, but we have pretty much all the shotguns we need in the  mod for v1.1.
3. As for the grenades we have already added semtex, soon tomahawks, the hells retriever/redeemer, and then the standard M67 frag. So I think we are pretty much good on grenade type weapons.

Thank you for the requests, they are decent but we are trying to tighten down the list of features so we can get it out soon, otherwise its just gonna be a project that goes on forever until we abandon it (seen it before). If you wanna view what's to come you can see Here.