I usually like hard SF to a degree. My like for 40k is an anomaly really. So I don';t find a lot in 40k i would export into oter sf games i like since it's way to sci fantasy. Sopme of the tropes in 40k, like power armor, bio engineered super soldiers, etc, are staples of hard sf.
I have thought about importing bolt guns into some other sf games. I like the variable warheads and such, so i may imjport them into some games.
I was loking for some solid information on bolters, like why they eject casings when they're solid fuel rockets, i've heard they are two stage gyrojets, so anyone have any heavy sources of tech data on them?