Welcome.
To share your campaign(s), I would suggest these steps:
1) Upload your campaign file set, zipped, to a file hosting service. Most here use the Mission 4 Today site or Mediafire. Once uploaded, get the download link to your campaign.
2) put together a readme file that describes your campaign and gives the installation instructions with your download link. You can use that in your zipped file set if you want, but mostly you will want it for your campaign post notice.
3) Create a posting in one of the Campaign sections of the forum here. If it is a BAT campaign, post it in the BAT section and in the correct period, such as WAW, TGA, etc. It is a good idea to include some pictures in your post; we all like to see the action, don't we?
Note: you will not be able to post links until you have 5 posts yourself. This is one of the board's anti-spamming measures.
If you look through the posts here you will find some good examples of campaign notices:
https://www.sas1946.com/main/index.php/board,269.0.html