I noticed that it isnt the case when i tried to claim a drillship and it registered it as the New Drillship, and Removed OwnerShip from the one Me and my Friend already Had.
Would Suggest To be able to Have More then One Drillship in Co-Op, To lets say That each player could have a Drillship on thier own.
Yeah, this is something we definitely plan on adding in the future