If i would say my top ten it would probably be something like (in no particular order):
1. Gunslinger.
2. Generic balancing of all the "numbers" (Weight of weapons, like M14 and SCAR heavier while LAR and bullpup 1 block lighter, mag numbers, recoil, weapon and ammo cost plus discounts (the sell and rebuy issue), damage, headshot multipliers etc etc).
3. Swap laser and scope between M14 and SCAR.
4. Fix dualwield pistol ammo bug.
5. Able to switch between single and dualwield.
6. Changeable perk levels that you have unlocked.
7. Changeable spawn weapon at level 6.
8. Grenade cooking/priming.
9. Put a pipebomb limitation to a max amount on the map for a person.
10. New weapon ideas i like are the Dual Machine Pistols (any kind really), Revolver, Bow n Arrow, Shield and more firebug weapons.
Oh and @
Yomommassis: Those animations look sweet

Dualwield machete could be quite cool actually. But like someone else also sorta said, how about having the main attack being attacking alternately with the machetes, making a really fast attack speed, and then the power strike could be those dualstrike animations you have?
Thus, power strike for damage spikes (hit and run) and the main attack for pure dps:ing a durable target.
Dual Machete could be almost as strong in DPS as the Katana, but the difference is that while Dual Machetes is much cheaper, the Katana is slightly lighter (Dual M. would be like 2+2 weight? (Yes one only weigh 2 imo))