I have been matching guardians with full-on invisibility on all game modes, it is literally an unfair advantage in the comp game. There is almost no ping on the radar unless it is also delayed, the guardian can just crouch in front of you and would be able to see him/her at all, they just pop and you are dead.
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You can still see their weapons, outline a d name with this bug, do you are still aiming at the same spot, sure its annoying but not completely game breaking.