Excellent game, I love fast-paced multiplayer shooters, and I absolutely love RPG-style upgrades and abilities, and have actually been waiting for a game like this to come out for a while.
I would enjoy it a whole lot more if my character was totally persistent. So I'm very glad you said that there will be a mode where that is the case.
I'd also like to be able to have hotkeys for buying guns, as well as being able to preset a skill queue so I don't have to waste time while I'm in the server setting up my skills.
But still, very, very, very good game.