1. Why are other players semmingly honed in on me while I am cloaked? The seem to see me, or see my nametag move on the killcam.
2. Why does it look like some player have instant aim/lock on headshots? Looks like quick scoping.
The cam is showing a triangle, or sometimes a hole name, purched/cloked/moving along the map. Is there a module that they are using that I have to counter, or suit feature that I am not deploying?
Keep in mind that you are not completely invisible, even with stealth enhance III on, and you still cas a shadow. I know that I look for these things especially in corners and side spots. As far as the triangle, when you enter visor enhance (Up on the D pad) you can mark enemies with the x button or just keep it on them for a sec. or two, it will mark them red with an arrow over their head. They are now marked for you and your entire team until they die (I believe). Very usefull for stalking your prey and if a teammate kills them you get spotter points. Try it out.
I've trained my eyes to see cloaked players and I'm specifically looking for them. You do not have a shadow with Stealth Enhance III, however, when moving through sun light the cloak is less effective and more noticeable and ill advised. Stick to the shadows and always try to be the hunter. This game rewards more aggressive play IMO
Most all of the MP issues probably all come down to the network lag though.