Cannot get past Battle of Britain in single Mission, Xbox 360

[brian64]

Question from a new user...... I recently got the IL2 Sturmovik game for Xbox 360, completed all the single missions for the Battle of Britain and cannot go forward, the next mission set is still locked. I have tried to contact tech support, but was referred to the forums for help. I have also completed the campaign for the Battle of Britain.

Any help on what I need to do to unlock the next set of single missions would be appreciated.

Thanks