There's this loadout button on the map screen, but beyond noting what items I have access to, it doesn't really add any interactivity. So how about being able to toggle which, or move the position of, the weapons I have available in my inventory for use?

I find myself mostly sticking to four weapons; auto shotgun, rocket launcher, plasma rifle, and arc rail (and sometimes the minigun and super shotgun), and while they are somewhat close in terms of cycling, it's still a bit of a hassle to quickly cycle them all.

Just a thought.