First of all... those impressions were mine. And yes they are more believable dots now and I've been wondering why would the dots be blue if they are acting like a radar jammer with elevation readings and what not. And I finally figured it out. I went back over the camo footage from an enemy point of view. Below are two videos where you can see the player in the vicinity of a camo player and then engaging the camo player. And I discovered something. Here are the videos:
http://www.youtube.com/watch?v=SXRK5YzD8rU&t=2m45s
http://www.youtube.com/watch?v=UuTN1dImV9M&t=0m38s
So I noticed while watching that there were times where the enemies dot was red, but there were times when it flashed blue. And I observed a little closer. It turns out that you are actually blue most of the time while AC is turned on. HOWEVER, when you sprint or fire your gun your dot turns red. The reason why they were red in those two clips is because they were firing or sprinting... but in general if you aren't doing that then you are blue.
So I was wrong... and I am VERY happy about that. That does mean I still get my radar jamming aspect. I'm so excited.