1. UnZip and install the "Stuka Challenge Coop" folder in the following location:

{installation path}\IL-2 Sturmovik Battle of Stalingrad\data\Multiplayer\Cooperative

2. Run this missions by creating a server in Multiplayer, Cooperative mode.  You will likely need to set up port forwarding on your internet router in order for others to join the server and download the mission.

3. Have fun!!!!

Stoopy