I thought you might be interested in looking at Please BIS do something for hosting COOPs behind a Carrier Grade NAT.
https://forums.bohemia.net/forums/topic/192849-please-bis-do-something-for-hosting-coops-behind-a-carrier-grade-nat/?do=findComment&comment=3067689
× Pasted as rich text. Restore formatting
Only 75 emoji are allowed.
× Your link has been automatically embedded. Display as a link instead
× Your previous content has been restored. Clear editor
× You cannot paste images directly. Upload or insert images from URL.