Was thinking about that last night.
Nothing that changes gameplay , I just thought it was a cool visual effect that in Fade Away with Fl4k enemies get this red aiming reticle on them. Makes them so much easier to find quickly due to the short duration of that action skill.
Same with IB. Sometimes as your health is going down I frantically have to look at my mini map to see where the next closest enemy is so I can quickly refill my armor, but it would be so cool if all enemies on screen can have a red or blue reticle on them or some kind of marker. Makes you feel like you’re more in a mech
Just a random thought sorry