friend or foe system

okay, so i want to have a discussion on the friend or foe system. now i think it has potential, BUT i dont think that the ouline should be applied to enemies. however i think that the system could be applied to allies. i think that the way to make the system work and feel “classical” would be to make allies the noticeable bodies with the old service tag icon above their heads and maybe a slight outline around them, and the ability to see them through walls and such. the reason as to why the enemies shouldnt be outline is for a stealth aspect. the colors are too bright, you would be spotted way too easily in the darker areas as well as being picked out a mile away. being able to hide in bushes or have that moment of crouching around a corner and someone walks past you obliviously, the outlines make that basically nonexistent. the service tag system is honestly a better way to show friend from foe than outlines and it makes it more fair for all playstyles