TO INSTALL TO THE MISSIONS:

1. Navigate to your "Save Games" directory i.e. C:\Users\User\Saved Games\
2. Navigate to your "DCS.openbeta" or "DCS" directory i.e C:\Users\User\Saved Games\DCS.openbeta or C:\Users\User\Saved Games\DCS
3. Find your "Missions" folder: C:\Users\User\Saved Games\DCS.openbeta\Missions or C:\Users\User\Saved Games\DCS\Missions
4. Past the Mission files from your download there! 