In the same mission, after I got rtb clearance, my wingman didn't follow me and didn't obey my orders.
I saw him flying to north, I gave him rtb order and he replied "copy" so I thought he was coming to the boat, but when I checked him on f10 map, he was going north. I gave same order two times more and he replied copy. But kept going north. Then he said bingo fuel. So I told him to go tanker and he replied copy but kept going north. Eventually he ran out of fuel and ejected. I turned back to the boat alone.