There are three main points of access into the room. You can’t do anything until after Mossman betrays you, so just wait. This is actually a lot easier than the second one. When you go into the teleportation room, walk by the turrets and use the chargers on the walls to heal up before the last fight. Just follow Alyx around as she talks to Mossman. There isn’t any more combat for a few minutes. Once they are dead, go through the door they were guarding. The grenade launcher on the submachine gun should come in handy for this part. Use the AR2 and some grenades to blow them away. Split off to the right and start shooting. The Combine will turn off the lights and just throw a bunch of flares. Their only angle of attack is covered by the turret too, so you can just sit back and blow away the occasional man hack or soldier who gets too close. If it is knocked over, you can quickly set it back up. The turret will be very hard to knock over because it’s supported by you and the door frame. Set the turret at the door and get back in the cell. If you are being overrun at the ammo box, then grab a turret and run into the lit prison cell by the room with the ammo box. Then go through the door.Īs a side note, if you can’t make a stand at the ammo box, then there is another area that’s easy to defend. Follow her out of the newly opened cell door and charge up at the two new chargers. Survive it and Alyx will join with you again. They’ll make one last push with double the soldiers and man hacks. Alyx will eventually mention a “mother lode” of soldiers coming.

You will need to last through a fairly steady wave for about four minutes. If they manage to knock one over, then set it back up. Take up a position in the center with a shotgun and kill any soldiers that get too close. Put two up on one side and one on the other.

It’s roughly in the middle, so you are in a better strategic position. Set up in the other room with the ammo box. If you set the turrets up at the door, then the soldiers passing through the forcefield will be so close that they will constantly knock the turrets over. Press the two buttons to unlock the three turrets. Go ahead and use both chargers on the wall. More soldiers are coming, but they won’t spawn before you set the third turret down. I personally consider this the hardest one.

The difficulty is really amped up though.

Half life 2 turret