Resupply Tanker is a 2v2 map created for the beta of Heart of the Swarm. It was removed in season 6 2013.
Official Map Description[]
Try to control the high ground areas in the middle of the map. This will allow you to access the two Xel'Naga Towers which grant vision of incoming attack paths.
References[]
Blizzard Entertainment. StarCraft II. (Activision Blizzard) Map: Resupply Tanker (in English). 2016.