Solidus comes out of the series a fucking hero in retrospect. "Hey, you do realise your weird, goofy AI is fucked, right? We should fix that and maybe not let the machines rule the world; that's a good idea, right?" said Solidus.
But, no, stupid Jack had to go and kill him for .... I don't know? ..... reasons? Sure, Solidus killed Raiden's parents just to get an erection or something, but, still, HE TOTALLY CALLED THE INSANE AI MACHINE. You know, the one the goofy team from MGS3 built. I salute you, Solidus. You were a good man. Mostly. I tried not to kill you, but I had to. I wanted to see the ending.