- Start a mission ( I started Showcase Commanding from the beginning ).
- When you land and the other two lads join your team press start and save your game (didnt have time to check but may only occur in regular difficulty)
- Load the game you just saved and see what happens.
- If all is well after the last step go to game options and then in the difficulty menu enable/disable unlimited saves and try again.
Once it starts happening it happens nearly every time.