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Part 1
Half-Life: Opposing Force

Part 1

Detailed walkthrough for Part 1 of Half-Life: Opposing Force. Learn strategies, tips, and secrets to navigate the early missions of the game.

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Detailed walkthrough for Part 1 of Half-Life: Opposing Force. Learn strategies, tips, and secrets to navigate the early missions of the game.

This is a very complete walkthrough of Half-Life: Opposing Force, including tips, strategies, and secrets. The author prioritizes taking minimal damage and using ammo efficiently, while aiming to skip as little as possible. The walkthrough covers differences between game versions, including the Steam Source version.

Walkthrough
  1. 1
    The guide begins with Part 1, detailing the initial sections of the game.
  2. 2
    Specific updates for Version 1.50 include notes on skipping section c1a2c, opening the silo door early in c1a3, using a rail car to reach an exit pipe in c1a4, using a barnacle for a secret area in c1a4i, using tripmines to cross a barricade in c2a1, setting up tripmines before descending a lift in c2a1a, reaching an activation switch faster in c2a1, finding a tripmine with a bullsquid in c2a2b2, a shortcut for launching a rocket in c2a2h, a secret side room near an ichthyosaur tank in c3a1a, and a gauss gun altfire strategy in c4a2a.
  3. 3
    Version 1.45 added a tip about a secret area with three armor batteries in section c2a2d.
  4. 4
    Version 1.4 added notes on differences in the Steam Source version, indicated by "SRC:", including improved physics, altered enemy trigger points, more wandering creatures, and increased enemy combat freedom.
Tips
  • Always check official host websites for the latest version of the walkthrough.
  • For printing, use the RTF or PDF versions for better formatting.
  • Consider using the Universal Hint System for specific hints without spoilers.
  • Quicksave often to avoid losing progress.
  • If you have a favorite strategy or secret, email the author for potential inclusion.

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