Hi
Glad you enjoyed that OC. Wear your tin hat for number two!
Viking,
just drop the Slovakia WW1 folder into your 4.09b Missions/ Net/ Coop folder. You will then find that folder in your Coop index after you create a Coop server using Multiplay. You will find the four missions within.
Drop the folder named CR_42 into your PaintSchemes/ Skins folder and allow the overwrite. Which skin fits the plane selected by you is explained in the country brief - and can be selected on the Arming page.
Don't forget to select Difficulty levels before loading the mission. I highly recommend downloading all the collected WW1 skins available at Mission4Today and then flying without icons. It makes getting bounced by "the flying Circus" a very colourful experience! Likewise it's easier to find your friends if you're part of that Circus!
That last is the reason I made these actions as coops. You can fly any position, any side, give orders etc etc. I would go Campaign if I had the keyboard skills and the time - but I still think they are well worth a try.
Cheers to you, and Tally ho!
B