I don't think you need to worry about spoiling MGS, its been out for nearly 10 years, if you cared about it you would've played it already. Its like me spoiling Super Mario Bros, everyone pretty much knows that the princess is in another castle.I lol'd at you Sonuis.
Also isn't that cyber-dude the one that (spoiler for MGS?) got sqashed by Metal Gear REX and I think... Liquid Snake? I remember a thread in 4chan's /v/ about the guy, everybody was like "man he was cool but what a way to go, getting smeared on the ground like that."
But yeah Solid Snake was fighting Liquid (who was in REX) and Gray Fox appeared to help Solid, Solid had a chance to beat REX and Liquid but he had to shoot Gray Fox (who was a close friend back in the day). Snake didn't take the shot and Liquid steps on Gray Fox and wipes him on the ground. Pretty nasty.