At last - Meet The Scout:
We have a very good idea who you are, Gametrailers.
Seems a bit tighter than the, to my eye, slightly iffy Demoman trailer. The Scout-as-jerk angle was the only way to go, really, and it works - certainly, I really, really wanted to see him take a beating by the end of it. Which is, of course, very much the point.
Also, the Heavy eating a sandwich is one of those images that's bound to grace desktop wallpapers across the globe.