Matrix

Hybernetic Security System FATCONID16328821, better known as Matrix is a major character appearing in S.T.A.L.K.E.R.: Lost Alpha.

Overview

 *  is the holographic guard within the X7 abandoned laboratory.
 * The guard spawns in a room off the main hallway and begins following the player through the X7 facility.

Trivia
"Oh my God, you're me!"
 * As the first dialog with Marked One reveals,

- Marked One

..and the PDA Contacts image is indeed that of the player's actor.
 * Matrix can actually be wounded and effectively disabled, allowing the player a less pressured journey. However, achieving this is tricky (pistol fire into the legs being the more effective option).
 * Even with invulnerability (g_god), a player can still die from shooting Matrix.