Get access to main control room

 is a storyline task that is assigned in the S.T.A.L.K.E.R.: Lost Alpha standalone mod.

Overview

 * This is a straightforward continuity mission that involves some more walking around but this time on the third sub-level of the Warlab.
 * Entering the discovered door code back at the Lab scanner concludes the mission.

Trivia

 * The pair of Burers frequently tend to be disinterested in the player and just run around the third sub-level. Face-knifing will save on ammo.
 * The Zombies are also pretty poor sport.
 * A lone Karlik might be more dangerous as far as the player is concerned.