Finally I can make a knife gun with knife sights and knife grip
Will there be hats?
I don't think I'll spend my time with this game; I sense they'll charge for the best parts and there will be god-players who pour all of their money into the game to get one-hit-kill god-guns.
Perhaps. However you unlock parts by playing the game, similar to Call of Duty. I'm sure they'll offer options to speed up unlocking everything though.