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Lambda Core, continued

Follow the sign reading "auxiliary tank reactor access." In the tank room, a number of grunts will be teleporting in. You can either fight or just drop into the tank and avoid them. Follow the water to the reactor core. Turn both valves to flood the reactor. Climb the ladders, avoiding the energy beams and jumping the gaps, to reactor core D.

Follow the hallway around, and then enter the supply cabinet for ammo and HEV power. Enter the elevator and climb the ladder to level B. Jump from the ladder to the broken door. Check the supply cabinet to the right, then go down the hall. Open to door to the security station on the right. Talk to the guard and use the health dispenser. Enter the hallway and fight the grunts and slaves that await you. At the far end of the hall are more grunts. Lure them into the hallway under the pipes, and then throw the steam valve. They'll fry quickly.

Go down the hallway and turn the corner. At the end, you'll see a ladder. Climb down to level C. Jump onto the crates and over the fence. Jump off the left side of the pipe to get some supplies, then jump back again over the girder at the other side. Climb the ladder and head back up to level B.

Enter the level B reactor core. What follows is a series of teleporters you must enter in the correct sequence. You enter the orange glowing portals and exit the green portals. As you enter the ports in the core, make sure you time your teleporting so that you land on the rotating platforms. Stand on the ledge of each port and look up to see when the platforms are in place. Following is the correct sequence for the teleporters:

  
   Enter the ports in the correct sequence to access level A of the Lambda complex.

Jump into the teleporter at the base of the core. Jump into port 2. Duck under the pipe and jump into port 4. Jump into port 7. The various other ports will lead to some supply areas, so you may want to do a little exploring.

Once you've jumped through port 7, you'll emerge in another teleportation room. Jump across the waste to the rotating platform in the center. You need to make it into the areas labeled "01" and "02." In each is a switch that will open half of the doorway to the teleporter. This is very difficult, so you may want to save your game each step of the way. The best method is to drop from the outer platforms to the middle platform when it is down, then drop to the inner platform. Going the other way, jump quickly from the inner platforms to the outer platforms and into the necessary areas, skipping the middle ring altogether. When the door is open, jump into the teleporter.

You'll reach a new area on level B. Kill the Headcrabs and search the debris for HEV power. Then climb the ladder to level A. The Scientist will open the glass doors. Talk to him about what you need to do, gather the supplies, especially the jump module. Once you've taken the module, the Scientist will let you into the portal control room. Inside, use the dispensers and climb the ladder to the platform. Kill the flying beasts that enter while the portal is being opened. Once the technician gives you the go ahead, long jump (duck-jump) into the beam.


Next: Xen