Sector F Lambda Complex

"If anyone can handle this catastrophe, it's the science team in the Lambda Complex at the opposite end of the base!"

- Black Mesa scientist

Sector F Lambda Complex is one of the seven main sectors of the Black Mesa Research Facility. It is connected to the Yellow Line of the Black Mesa Transit System.

Overview
The heavily fortified Lambda Reactor Complex is the site of Black Mesa's top secret teleportation labs, mostly made of a huge reactor consisting of the Lambda Reactor Coolant System, and the cylindrical Lambda Reactor Core. The core of the reactor facility consist of four levels - Level A (yellow), Level B (red), Level C (blue), and D (green) - that fuel an extremely powerful teleportation portal on Level A, where Survey Teams are equipped and sent to Xen.

One side of Sector F is linked to the rest of the facility via a Secured Access of the Lambda Sector Transport, located on level B of the Sector E Materials Transport. There Adrian Shephard confronts the Black Ops that took hold of the area. One vent found near the tracks directly links to the Level A of Sector F, where Shephard witnesses Gordon Freeman's departure to Xen.

Central Complex Bay 3
Written as "Central Complex Bay 3", it is accessed from Waste Processing Area 3. It contains an office and several hangars protected by a Ceiling Turret, filled with Vortigaunts and Alien Grunts, as well as Snark Mines. An elevator leads to the Black Mesa Central Complex, but it cannot be accessed. Under is a small HECU-controlled sewer accessed through a trapdoor, with a few Barnacles, cockroaches, and an Ichthyosaur and Leeches underwater. There another trapdoor leads to the outside where an M1A1 Abrams is stationed in front of the other access to the Black Mesa Central Complex, where another elevator is found.

Black Mesa Central Complex
After the Bay 3 elevator the Central Complex is found below. There nuclear generators can be found. One of them is damaged and radioactive waste has spilled on the floor.

Mechanized Infantry Repair Bay
The next area is the Mechanized Infantry Repair Bay, a large garage where an Abrams was apparently being repaired before the Resonance Cascade. There HECU soldiers are fighting with Alien Grunts. A corridor with more Alien Grunt, Vortigaunts and a Xen Sentry Turret leads to the Lambda Reactor Complex.

Lambda Reactor Complex
This area is accessed from a large elevator with an M35 Cargo Truck on it.

Hazardous Materials Handling Bays
Features two Bays, Bay A and B. Before that area can be found a Bullsquid attacking Headcrabs at the foot of the elevator coming from the Repair Bay. Each Bay is separated by short tunnels with heavy blast doors on each side.

Hazardous Materials Bay A
Controlled by the Black Ops, Bay A is full of cargo crates, containers and explosive barrels, and has a catwalk around its perimeter. A tunnel leads to Bay B.

Hazardous Materials Bay B
Two Alien Grunts are found in Bay B. It contains further explosive barrels and cargo crates. The tunnels continue, but cannot be accessed; what follows is unknown. On the right a ladder leads to a small room where a scientist awaits Freeman. This is the last entrance to the Reactor Complex, as all the others have been sealed off.

Test Firing Chamber
After a small elevator can be found the Test Firing Chamber, a target range for experimental weapons such as the Gluon Gun, which Freeman is given there by the scientist who designed it. He can then open two test firing tubes, one of which contains several Headcrabs, the other a Bullsquid, and test the weapon on them.

Lambda Reactor Coolant System
What follow is an elevator that goes deep under the facility, in the Lambda Reactor Coolant System.

Teleport
Operated by the Main Portal Controls.

Trivia
The logos and signs seen in Sector F are very different in style from the other logos and signs seen elsewhere in the facility. That could either mean these levels were among the last to be designed, or that Sector F is one of the most recent sectors of Black Mesa (as one of the fonts is also used in the rather recent Biodome Complex). The particular font used for the large letters is Eurostile; the one used for the small letters is Helvetica LT Condensed Black.

List of appearances

 * Half-Life
 * Half-Life: Opposing Force
 * Half-Life: Blue Shift