I think that the operative should be able to give someone a radio (one pip) and they can then see enemies that the Operative spots (through iron sights and then sticks for a bit before disappearing) through walls. I think this would make actual sense since you are just radioing their exact position and it gives the Operative a more team based role as well as a more permanent one instead of just when an objective comes up.
Thoughts on this and your own ideas.