I had the same problem on this mission happen to me today. Just before getting on final for runway 16 the IL-76 turned west and started climbing. I followed him and he got up to fl250 and I tried to gun him a few times to no avail. Finally, I decided to hit him with a winder and that got his attention. He returned to Beruit, landed on runway 16, and I got the go-ahead to RTB. Hopefully might be a temporary solution for anyone who reads this until it gets fixed. I didn't want to hit him with an amraam as I figured that would for sure destroy him. As it was he was limping back to Beruit at 150-160 knots. I got a 100 score on the mission doing this.