I wrote a story where an everyman is loaded upon a 'primitive' nuke and fired into space to guide the joystick towards the enemy. However, nuclear weapons don't work in space so that was a stupid idea. Actually, maybe you could nuke Mars? If I switch the enemy base from the Moon to Mars, that works, eh, does it? I have researched 'weapons in space' and found rail guns but can't get my head around the mechanics to visualise. My story's many essential flaws aside, what weapon - given about 100 years of scientific development from the present, can my hero utilise to destroy a planetary base? Soft, nothing too hard physics Phd for me please. Maybe he just unplugs the O2 filter shield... Also, what would liquid methane look like? Different story - Speedboat on Titan. What happens if you swim in methane?