I've cried from frustration many times when I was younger... But I don't think I've cried as an emotional reaction to a game... I was close however when in Fallout
And in CoD4
And lastly in Star Wars: Republic Commando
The Overseer threw me out of the vault... But the sense of sadness was overcome by a sense of joy when my character pulled out a gun and shot the old bastard in half
And in CoD4
When Gaz was shot in the face by Zakhaev
And lastly in Star Wars: Republic Commando
When Sev goes MIA, I fucking LOVED Sev... Why did they have to kill him? ;_;