I did not do all of it on arcade. I switch back and forth between campaign and arcade. i finished on arcade and it gave me the tour of duty onyx medal but not the warmonger one. Thought it worked both ways. If i still need to do chapters on arcade how do i know what to do? They all say insane when i am at the chapter selection screen. If any body know this or had the same problem and fixed it could you please let me in the the big secret.