Gordon Freeman

Gordon leans out the hole in the roof a ways and looks around. "We need to get to that building there," he says, pointing to one of the taller ones in the distance. "The street leads in the right direction, but it's crawling with zombies, and it ends at some kind of a... looks like a cistern or water tank or something. I don't like the idea of falling into that thing, do you?"

After some thought he adds, "There's a couple of girders running across the street down towards the cistern. If we can cross those we should be able to get into that brick building and make it to the roof from inside. Think you can manage that?"