[salesman]

As far as hot keys go, I don't think being able to switch between any item with the press of a button is such a good idea. I definitely don't want players to be able to bind every key on their keyboard to a different item.

I'd prefer a more purposeful approach, such as having primary and secondary weapons. Of course, with this system, there would have to be something to balance it (like longer reload times). Players would be able to designate a primary and secondary weapon in their inventory and then switch between them whenever they are running low on ammo or are in a situation where one gun would be more useful than the other.

You would also be able to set a grenade/explosive in your inventory which could be thrown by pressing the "G" key.

We wouldn't have a limitless hot key system, but instead you would be able to easily switch between grenades (G), two guns (D; + some other key to switch), and melee (S)...a bit more organized.

e: I know this idea has been floating around for quite a while, just stating that I believe it would be our best bet for a "hot key" system