Gasworks

"There have been rumours that BLU murdered one of the most important members of RED at one of their refineries. Secretly, a chosen team of Mercenaries went to investigate a RED refinery located in the Badlands, between Badwater Basin and the Thunder Mountains, known as Gasworks. However, the moment the team arrived, they realised that they were not alone in this investigation and had no choice but to fight for their lives."

This is a remake attempt of Half-Life 1 multiplayer map, Gasworks, for a Team Fortress 2 mod, Open Fortress.