What kind of exploit you say?, if you mean that the repeatability of the quest is the issue, then you sir are wrong in many ways that i'm too lazy to enumerate.
Do you mind? I'm busy doing the fishstick, it's a very delicate state of mind.
Ummm.... you are supposed to be able to repeat those missions regardless of the strategic situation.
By the way, these are best done on an empty campaign. Then you can just hop on your horse and ride to the location. Scout it. Run in and die, respawn back to your alliance. Pick up reward, pick up new scout mission. Rinse and repeat.
How exactly is it being exploited? You haven't given any example of that. Second, did you make a report in game? 3rd, there really was no reason to bump this thread.
You know where to camp with your character in one of the other alliances then. Should be able to rack up lots of dead PC's if they are all running to the same place over and over.