Why is it that when I detonate c4, and I am 200 to 300 meters removed from the area, that an enemy helicopter spawns and zooms in on my exact position? It just sits there too, the first one I got away from, and it sat there for 30 or more minutes before it vanished from my hud. I thought it would fly in and patrol the surrounding area, not magically know where I'm at and sit there.
I don't know why I expected that when ground troops do this too, but the helicopters doing this seems a little more ridiculous than when ground forces do it.
The same with Azrael drone. Once they spotted player, they would send Wolves. The only way to get rid of this chasing Wolves is to kill or run away with vehicle or chopper. Otherwise they will always follow players steps, not like looking for he/she but like exactly knowing where player hide even if player vanished anyhow including Panther Vanish special skill - Wolves don't look for but know exactly where to go, go and kill if can. I wish I was that good with lottery numbers...