The red outline is a bug as old as this game https://answers.ea.com/t5/Bug-Reports/Red-Aura-Around-Friendly-Players/m-p/6650022
However, it has never been reported together with red flashes on the radar AFAIK.
But, there is another BUG about allies making the radar flash in red as if they were enemies, but only when in Armor Class Vehicles: https://answers.ea.com/t5/Bug-Reports/Armor-vehicles-show-up-as-enemy-on-the-radar/m-p/6523404
Maybe in you case both things happened together? If this happen again, and if you may record a clip of it happening, please bring it here. Video evidence is great to help devs get rid of such bugs
It sometimes happens to me when looking into my duel scope. Allies are outlined as enemies, happens quite often. It doesnt affect my game play so i never said anything. Waited to see if anyone ever had the problem.
