ABDUCTED
In this Doom TC mod, be a Gorgos, the only specy in the universe to be able to see and use the energy X, a mysterious energy with multiple capacities : weapons reloading, rocket fueling, body enforcement ...
During a flight on Earth, you crashed your saucer. As the only survivor, you've been abducted by humans and emprisoned in a secret hidden military base. They want to study you and you abilities to see energy X.
Escape from this base, kill humans and destroy as many things as possible to gather energy X. Try to contact your brothers and join them to go home.