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Half-Life 2: Episode One Hints
Section 1: Core Containment (ep1_citadel_03)
1 of 9: Move forward into the control area cautiously, watching out for Combine soldiers.
3 of 9: When it arrives, get inside it and ride it down to the core entry area.
4 of 9: Your task now is to reactivate the containment system so that the core won't blow until you, Alyx, and other resistance members have a chance to evacuate City 17.
5 of 9: There are three core control rooms that you need to visit and activate containment machines in. I have detailed hints for each of them below. (Note that you have to do them in the order listed, and the hints for the second and third ones will pick up where the previous one's hints left off.)
6 of 9: Powering up the third containment machine will have the aggravating side effects of destroying all of your armor and reverting your gravity gun to normal, but that's unavoidable.
7 of 9: Thankfully, going through the newly opened door will get you back to the rooms with Alyx and a recharger.
