Shoot the panel and kill the 3 Combine guarding this control room. Pull an energy core out of the tunnel you just climbed through. Shoot it into the receptor to fire up the third and final containment device. It doesn’t work right though. Drop down into the unshielded compartment below.

You need to get an energy core into each of the fields to power it up. There is a hole in the ceiling by the fields that gives you access to the energy core tunnel. Grab 2 energy cores and fill the 2 streams on the right. Don’t fill the third one just yet though. We have to get out of here, and the third shot will put the shielding back in place and trap us in here. Grab an energy core and step onto the lift device by the machine. Fire it into the third field and ride the lift up. Grab another energy core and fire it into the receptor in the room. This fires up the complete containment field.

A Not So Clean Escape

This also marks the end of your game breaker gravity gun. It loses the special charge and your suit loses all the energy. Go back and meet up with Alyx. Follow her around to get some more information about what the Combine have been up to lately. Once the siren sounds, just follow her to the elevator and ride it down to the train platform.

Walk forward and move quickly. You need to get out into the little control room and round the corner. Alyx will seal off the door. Go forward and let Alyx approach the panel. 2 rollermines drop in though. Pull them up and hold them close to Alyx for a quick realignment. Hang back by the glass and make sure the rollermines stay by the central door. Once Alyx opens it, they should roll into the room and kill the 7 Combine pushing toward you. Go into the room and heal up through the health panel as soon as Alyx drops the shield. Then duck into the train before the wave of Combine get to you.

Ride along and realize that it’s a stalker car. Also note that the worst is definitely not over. The train crashes in a minute and Gordon is thrown into the back. After the crash, crouch and hop over the little partition. Keep moving to the back of the train. Use your gravity gun to pull the stalker off of Alyx. Then knock the panel open. Drop down into the station to get away from all the noise. Crouch and go through the little hole to end the chapter.

This post is part of the series: Half-Life 2: Episode 1 Walkthrough – Part 1

Things have gotten a bit rough in City 17, and it’s time for us to get out. This means buying some time with quick repairs on the Citadel, an escape through the zombie filled sewers and a battle with the remaining Combine so that the rebels can escape.