I was fly yesterday I had climb to 25,000FT. When my Aircraft had an engine shutdown and seize up, However it was not from abuse of the engine. I had warmed up correctly took off and no water injection I was lean on mixture. I had used the drop tank but not jettison. I was using the Aux fuel. The report says it was engine miss fire. I don't think I have random failure set. So what killed the motor in flight. Was not damaged through combat. ????