Nate hears the explosion behind him and quietly hopes that Charlie had the mind to jump before it happened. Before he can check, he has to deal with this asshole in front of him. So when he's charged, Nate sidesteps the punch and throws a few well placed punches of his own until he has an opening to knee the bastard in the stomach. While he bends over and struggles to catch his breath and bearings, Nate turns and makes a break for it, leaping across the rooftop and firing ahead of him.

No sign of Charlie anywhere, and the only gunshots are his own and the ones being aimed at him. Not good. On instinct, he heads for the collapsed building.

"Charlie? C'mon Charlie, give me something to go on here--" he starts, peering down the hole. Its impossible to see with all the wreckage and the dust, but he starts down as best he can. "If you're not lying down there unconscious, say something will ya?"