Gatorademan!

Well sorry if anyone said this before but... Couldn't it be the PC from the third game? In the end you go to war on the mainland, no matter which side you choose(unless you die, then skip step 3 and just read "the end")it would fit perfectly, alwan and greta are still alive, and they both mestake you for 'someone they know.' And theres always GF4 in which alwan and/or greta say(s) that the shaper they traveled with 'disapearred.' mabye the PC got hit with a rock and forgot, cause SOMEONE cheated and typed igotarock...