'Blackfrost Extraction is a 4v4 map created for season 1 of 2015.
Official Map DescriptionEdit
Besides the main attack path, there are two other paths into your opponent's base. Make sure to use all three attack paths to your advantage when going on the offensive.
Blizzard Entertainment. StarCraft II. (Activision Blizzard) Map: Blackfrost Extraction (in English). 2016.