Are there supply ships in OM?
 

I try to play OM campaign and compare it to SH3/GWX campaign, which is, imho, very good . Are there supply ships and milk cows Type XIV in OM or not? Do they work similar to GWX?

Yes and technically they work better than in GWX, because you don't have to end patrol to resupply.

Especially if you play the actual "monsoon" missions, you will get very detailed instructions on where and when to meet your supply ships in order to make your transit to the Indian Ocean.

Thanks a lot CCIP.