Years ago, when observing the news of the landing of troops in Kuait for the 'gulf war par deux (it might have been the first one actually in Saudi), anyway i noticed them offloading challengers of an RFA paint ship, the difference was it looked like the embarkation ramp was on the stern and the vessel had it's stern up against the Quay, is my memory completely gone?
and if not any ideas what it may have been called, over at the liverpool museum they had a static model of the replacement for the atlantic conveyor which was sank in the Falklands, this had a ramp at the rear on the right at 45 degrees to allow for disembarking from the rear when the ship was along side a quay.