Allow 40mm Grenade Launchers to be put inside security belts OR make a new belt

[mralexs]

The paint shells should just be throwable sponge things

But Paint rounds are a thing for 40mm launchers
https://www.defense-technology.com/produ...oam-round/

What if the grenade launcher swapped between 1 hand and 2 hand between firing and reloading, 2 hand for shooting (a 40mm launcher has a bit of kick) and 1 hand for storing/reloading