I have flown mission 11 in the f86 at least 5 times now and the a10 that is supposed to be my wingman either crashes or just spontaneously explodes in the sky before reaching the enemy group in the river valley. I am flying pretty low following the mission briefing, but he always gets destroyed. I still hear him call out "missile, missile" and "don't get any closer" to the enemy position, but he is nowhere to be seen. I eventually get shot down by a missile because I no longer have his support. Does anyone have a clue what I could be doing wrong? I can't seem to progress beyond this mission.