Quake - (E1M1) The Slipgate Complex

Episode 1, Map 1 of Quake titled, "The Slipgate Complex". Played on the "Nightmare" difficulty with 100% kills and secrets. An attack has been waged against a military base on Earth by an unknown creature codenamed 'Quake'. The Ranger is the last surviving member of Operation Counterstrike, a plan to counter Quake's attack. As the sole survivor, it is up to the Ranger to find Quake, and destroy him (or it) to stop the alien invasion. The Ranger's journey begins here, at the Slipgate Complex.