Something I've been thinking about for a while... But, it did seem a bit easy getting headshots in Tcon. If it had had aim assist... It would have been downright retarded. In a lot of shooters I've played, being good all kinda boiled down to shooting the head, and Tcon certainly seemed this way.
Woudln't it be better for Con2 if they made the head a little harder to get the perfect shot on? I think they should have it so that the sweet spot on the face would be an area like the size of your palm, with shots outside that dealing somewhat less damage. In addition, I think from behind, the sweet spot should be a circle a bit larger than a baseball, at the base of the neck.
If you're engaged in combat with someone, this really wouldn't change things aside from having a little smaller target. BUT, if you're sniping... or if you're about to engage somebody who hasn't noticed you yet... It makes things a little more tricky. Its no longer just about following their head, if they change directions, you're going to have to adjust your aim to hit the other hotbox.
It might also do a little bit to running away a more viable option.