A good idea to add to the game, I feel, should be a "stats" screen -- being able to see the current exp rate of enemies, current fire rate, current exp/max exp, crit chance, crit damage multiplier, etc
Would be very useful. Also being able to look at it not just while shooting, but also while looking at augments -- would be an insane addition, to be able to look at stats while gauging which augment to buy.