Are you strong enough to shoot this weapon?

Rifle grenades are still a thing?

Probably

What is it and why does it have so much recoil?

I can shoot anything if my life depends on it.

FFL goes hard.

I'm 260lbs. Most of it is in my thighs and upper body. Likely yes.

It will do a lot of damage to the gun and optics.

....WTF is that Moron Doing at the 7 Second mark?

Putting hula-hoops out at 100 yards and trying to land dummy RGs in them is a big boy's game of lawn darts.😀

I think I'd do my three and get the fuck out and not reenlist if that's what I had to work with..