Ability to send photos to the enemy team (PsyOps)
My idea relates to the current binocular camera/send photo system. I believe for "tactical" (Read: PsyOps) purposes the ability to send photos globally and/or directly to the enemy team as an option (preferably as an additional mode for the binocular) would be great.
Picture the scene, you're a guard defending an infiltration point, or are patrolling, and a photo pops up in the bottom right (Or perhaps left for photos from the enemy team) with a red frame or outline signifying it was sent by the enemy. You look at the photo and realise it's a photo of your back. You whip around but it's too late, you're already being subdued by the enemy. You are an utter buffoon, and everyone knows it.