As part of the new updated changes have been made to the initialization of the mod.

MCM should now be fully capable of importing existing character and bots from your ongoing campaigns

All you have to do is enable the mod (along with LUA for Barotrauma) and load your current campaign save file

The mod will announce that it has detected a new campaign and inform you of the imported characters and bots in the console window (F3)

>> WARNING <<
I recommend that you still backup your save before attempting to import the campaign.

If the mod fails to import correctly you may end up losing your character info and/or all of your current bots. After importing i recommend that you change maps (dock/undock) to make sure that no data was lost.

You may also want to try dropping back into lobby and restarting the match just to make sure that no data was lost in the process.

Disabling and removing the mod campaign is sketchy, I'd advise against it unless you want to risk losing your progress