Another part to watch is around tick 85000 in the sourcetv demo. That's just before my short demo starts. You can see that (and this is consistent with a few rounds prior to this time) that he doesn't shoot through the smoke down the long hall. On the other hand he immediately shoots through the smoke in the shorter hall which you see in my demo as well. It's this inconsistency, and the fact that he only shoots through smoke when he somehow knows that other people are there, which I'd like to point out here.