Because the player has to use the right stick to aim, jumping should not be mapped to a face button so players don't have to keep moving their thumbs back and forth. You even already have shooting mapped to R, so have jump mapped to LB. I'd also prefer if the aiming-reticle and player bullets moved faster, because right now, the game is pretty sluggish and enemies are a bit damage-spongy. By the way, will this just be an endless high-score game, or will there be a campaign?...