PWCG will make them for you in a campaign format.
See this Link to download the latest 3.3.3 Once you are on Pats page and click the download link for 3.3.3, be patient as it takes 1-5 minutes before the actual download box pops up.
PWCG 3.3.3Use this thread for quick directions to host in BOX.
HOW to host in BOXLook at the picture I attached to see where to set the option to generate coop missions in the PWCG program.
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