I'm pretty certain that they called him Stone in the film.
E...
Yeah, I don't know what happened, but he ended up being called Stone. That explains the Sergeant Stone action figure, and lack of Gung Ho.
Before I saw the movie, I saw the figure and figured Fraser would be Viper fodder when they attacked the Pit. But I didn't specifically see him get shot, or really see him at all after he pulled up on the go cart and yelled "Yo Joes!!"
Who knows, I can't even find Fraser listed on the cast list at IMDB.