The animation was better than expected, and the movie in general was fairly fun to watch. While I was glad there was no teenage impersonations of the TF2 voice actors (a common problem with fan-made Meet the Team videos), the lack of original dialogue made it a bit stale in terms of humor and variety.
If you could get some good voice actors somewhere that actually sound like the classes, you could probably make a great movie. Until then, I think you've done quite well for what you had to work with.
Good use of shape tweens and easing, btw. As a tiny tip, for cloaking, you can use a mask of a distorted version of the background. It's not a full warping effect like in-game, but it does look pretty nifty. ;]
This is the same Masquatto as the one that commented on the Steam forum, by the way (G-Mang).
Keep it up.