I'm really glad I've acquired Fall of Man. The campaign is much better than I remember it - the weapons feel really solid, the Chimera take a decent amount of lead, and... I dunno. The feel of the game does set it apart. Plus you can't take your health for granted so much.
I played a bit online, and got utterly ass raped. Gonna have to set that right, it's far different and getting my control setup sorted has taken a while.
Seriously though, this game deserved the praise it got, it's fantastic. The female narration is win.