This is a port of 1999 Rebellion game Aliens vs. Predator, an FPS developed by Rebellion Developments and based on the Alien and Predator movie franchises.
This game sets up three separate campaigns, each playable as a separate species: Alien, Predator, or human Colonial Marine.
Each player character has different objectives, abilities, and weapons. The single-player campaign presents the player with a conventional series of levels to progress...
