SomethingBig is right. Rufus is in the wheelchair, you'll notice his white coat. Cloud and the Turks work together, or at least both of them want to stop the silver-haired guys. The silver-haired guys are clones of Sephiroth. and they need Jenova's head to hold another Reunion and ressurect Spehiroth. Apparently, Cloud has the head, or knows where it is. Also, I think the kid in the crowd may be of some importance. The main silver-haired guy (Forgot his name) picks him out from everyone. Then later, Barret is protecting him from the WEAPON.

Check out MCS's Thread for more info. =D

~Jim