CF: Grognard.
I'm pretty certain that grognards (who basically did RPGs - just with a slightly different name) were around in the 1800s...
"Here at Ortillery Command we have at our disposal hundred megawatt laser beams, mach 20 titanium rods and guided thermonuclear bombs. Some people say we think that we're God. We're not God. We just borrowed his 'SMITE' button for our fire control system."