Chapter 4: Urban Flight - Part 1
After escaping from the zombie-infested underground tunnels, Gordon and Alyx reach the surface, which has been cut apart by the fierce battles between the remaining Combine forces and fleeing Resistance members. The two don't manage to get far before the Citadel's core resumes its meltdown process. With the Combine right on their tail, our heroes must fight through the destroyed city to reach the escape trains.
Playlist with all completed chapters:
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Notes:
- If one uses cheats to obtain weapons to attack the Strider at 1:22, it will glare at Gordon but will not fire upon him
- The puzzle at 4:40 can also be solved by placing enough weight on the fixed end of the pipes
- The Antlion Guard will target Gordon instead of the Combine if he stands too close to it (12:44). Similarly, Combine soldiers will shoot Gordon instead of the Guard if they get too close to him
- Gordon can avoid falling through the vent by grabbing the cells with his gravity gun, then backpedaling out of the dead end (15:14)
- Gordon can hitch a ride on a Barnacle tongue at 16:07 to skip the second room full of explosives by riding it to the top, then killing it so that he lands on the ledge with the vent at 16:52
- The pit trap at 21:49 can be avoided by walking along the sides of the room
- If Gordon doesn't hide from that gunship at 25:32, it will shoot at him
Trivia:
- Alyx is not shown getting to the other side of the walkway during the Guard battle (12:30). In fact, if Gordon stays within the garage, she will never move over there
- The translation of the Russian sign at 19:03 literally reads as "Hospital ward"
- The exchange at 20:39, where a Resistance member asks another for a password before permitting entry, was also used in HL2 during "Anticitizen One"
- At 20:52, a Resistance member asks Alyx if she's Kleiner's daughter, to which she sarcastically replies that she's the daughter of Odessa Cubbage. Odessa is a minor character in HL2, known for being the one who gave Gordon his first RPG, but is otherwise a coward who hides from battle
- The Counselling Couple, a recurring set of characters in the HL2 games, make their return at 22:20. Instead of weeping, this time around the woman is audibly less sad and more annoyed at their predicament
- Fighting a civil war has not been kind to Barney, who is no longer clean-shaven (23:37)
- Gordon Freeman gets his crowbar relatively late in this game, at 24:52
![](https://i.ytimg.com/vi/M1FWT0t2Of0/maxresdefault.jpg)