Ah ok, here we go. The terrorists on the main floor keep respawning, and the only way to stop them from respawning is to kill the mofos up on the second lvl. As you kill mofos on the second lvl, less and less will come on the main lvl. IMO, that's gay. Isn't this supposed to be about realism? That's not real, at all.
What I just said came from
this , I justed added what I got out of it.