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Half-Life 2 Hints
Section 2: Using Friendly Sentry Guns (d2_prison_07)
1 of 17: The first thing you come to is a control room guarded by two Combine soldiers.
2 of 17: Check around the control room for supplies and a health station, then find the two sentry guns that Alyx remotely reprograms to fire on Combine personnel instead of you.
3 of 17: They're in a storage case directly across from the computer console that the first guard was standing next to.
4 of 17: Use the little control panel in the center of the storage case to turn off its force fields, then set up the two sentry guns to help you defend the control room from all the soldiers who will soon attempt to retake it. There are numerous ways to handle this, three of which are listed below.
5 of 17: Soon after the last enemy dies, Alyx will drop into the control room and use a computer console to locate Dr. Mossman.
6 of 17: After you find out that Mossman is a traitor and Alyx deactivates the nearby force fields for you, you can finally move on from this area.
7 of 17: TIP: Pick up one of the sentry guns and carry it along with you, or use the gravity gun to shoot both sentry guns along ahead of you. They'll come in handy in several spots later on.
8 of 17: After you pass the deactivated force fields, turn left and go along until you get to a door with junk piled in front of it.
9 of 17: Move the junk away with the gravity gun, then go through the door and down a bunch of stairs until you reach a room where several headcrabs assault you. (Let your sentry gun shoot them up if you brought one along.)
10 of 17: After searching around for two supply crates, go through a couple more doors to reach a large flooded room where a broken computer console is electrifying the water.
11 of 17: After killing the zombies in the next area (if you have a sentry gun, just hold it in front of you as they approach), search around for supplies and a health station before going up some stairs.
12 of 17: You'll emerge to find yourself in cell block D8, where a most epic battle will soon happen. At first, though, there are just a few soldiers on the other side of some closed barred gates to take care of.
13 of 17: After you go up some stairs and search a small office for supplies, hop over a rail to drop down into the area past the barred gates. (TIP: Drop any nearby supplies you can't use right now over the rail before you go over.)
14 of 17: Alyx will contact you and warn you that lots of soldiers are coming your way. You'd better get ready for them!
15 of 17: After all of the soldiers and manhacks are dead, you can find Alyx standing on one of the upper balconies.
16 of 17: Approach her to get her to hop down and open a nearby gate. Then it's back to following her around (after healing up at the numerous health and armor stations nearby).
