Part 2

Game Organization: The walkthrough is structured around the game's major chapter divisions. You can search for chapter titles or use asterisks to browse sequentially.

Section Navigation: Each chapter is divided into game sections, indicated by "LOADING...". Section names in the walkthrough use internal codenames, visible via the console's "status" command on PC, to help you identify your current location.

Keybindings: Familiarize yourself with quicksave (recommended F5) and quickrestore (recommended F8 or F9) keys. These can be configured in the game's main menu under "Configuration" -> "Controls."

Gamma Settings: Adjust the gamma slider to its maximum in "Configuration" -> "Video" -> "Video Options" for better visibility in game areas without washing out colors.

Hazard Course: Play through the Hazard Course at least once, especially to master "duck jumping" (jump-crouching) and "crouch-jumping," which are crucial for navigating obstacles.

Crouch-Walking vs. Crouch-Running: The walkthrough often refers to "crouch-running" (moving while holding the "Duck" key, but not "Walk"). True "crouch-walking" (holding both "Duck" and "Walk" keys) is slower and less frequently necessary.

Sneak-Shooting: A tactic where you attack unaware enemies by targeting small, exposed body parts. This can often allow you to defeat enemies without them becoming fully aware of your presence. If they start to notice you, strafe to break line of sight.

Lift Glitch: If you get frozen on a lift, crouch and move to break free. Avoid crouching on moving lifts to prevent this. Jumping just before the lift stops may also help.

Flashlight Issues: If the flashlight malfunctions, try moving against a wall, pausing the game and toggling the flashlight, or using the console command "impulse 100." As a last resort, use "r_fullbright 1" to disable shadows (and "r_fullbright 0" to restore them). The v1.0.0.1 patch also fixes these issues.

Gameplay Extension: For extended play, you can use the crowbar to "splattify" dead bodies or attempt to complete the game on the highest difficulty without cheats, or even without taking any damage.