"She has been being used for supporting RO V
operations, saturation diving intervention,
and subsea maintenance activities, as well as
IMR projects especially topsides work on platforms.
The vessel is equipped with a helideck
approved for Superpuma sized helicopters"
This is coming from a PDF file published by (presumably) the company that own/operates her (Deep Ocean Group) if you google Deep Endeavour the PDF should be the second link