More like an updated version of Quake Wars, which came out a week before TF2. I'm not sure how any game that has classes and isn't super realistic looking is immediately passed off as a TF2 clone.
OMG I've been doing it all wrong! I've been shooting other members of my own team!That video basically states the obvious. Anyone who has spent more than a week playing FPS's would have very little trouble figuring out what the symbols on the HUD do. I was waiting for the person to say, "this is your gun. Observe that you use the gun to kill other members of the opposing team, which is one of the objectives of the game."