The beams quickly burn out as the ceiling explodes open. Look for a hole in the floor that leads you to an area with three beams. Unfortunately, the device won't fully activate. Grab an energy ball from the hallway you just dodged through and fire it into the receiver overhead. There are a few Combines in the next room, along with a third doohickey to activate. Dodge between them to move towards the source, and again look for an exit on your left.
Just ahead is another narrow hall with flying energy balls. Look for a panel on the wall that you can rip out using the gravity gun, then crawl into the small space. As you fend them off, look for a second railing you can leap over to reach another hallway of the complex.Ĭombine soldiers greet you as you land on the next walkway. As the platform spins, look out for the buzzing man hacks around you. You need to wait for the rotating platforms to point your way before leaping over the railing to land on the platforms.
Follow the hall until it leads back to the main core room. You'll find a med station and a few more Combine soldiers in the very next hall.
