So here's a thought..

I personally tend to switch weapons depending on the situation.
There is the 1 gun and shield set that I use and there is ofcourse the let's do some serious dmg with my dual gun set.
As it is now, I have to go to my inv, install a gun, install a shield and... run realy hard to catch up to the rest of the party.
It would be awesome if I could switch between them with a simple press on a button.