When an enemy is spotted or are in the range of UAV (anytime an enemy shows up on your minimap), I think a small icon should appear on your first person screen.
Think about it, if your in a combat situation and your buddy comes around the corner,
"Marcus, I'm out of ammo! There's an insurgent around that corner in the nook about 3 feet from the edge of the building, go get his ass!"
So you know exactly where he is.
The minimap shows an approximation with the inaccuracies of the background maps, where locations can be misjudged, altitude might be ascewed (Sure, let's hunt around for someone in a building who is in fact 500 feet above us skydiving, but no, we don't know that from the minimap!)
Opinions?
Think about it, if your in a combat situation and your buddy comes around the corner,
"Marcus, I'm out of ammo! There's an insurgent around that corner in the nook about 3 feet from the edge of the building, go get his ass!"
So you know exactly where he is.
The minimap shows an approximation with the inaccuracies of the background maps, where locations can be misjudged, altitude might be ascewed (Sure, let's hunt around for someone in a building who is in fact 500 feet above us skydiving, but no, we don't know that from the minimap!)
Opinions?