- Throw the grenade
- Place it where you will, pick it up, throw it away, whatever, use it to grenade jump over the gate Alyx normally opens. (Be nice and try to leave as much health as possible, but whatever)
- Bunnyhop past everything, into the corridor on the right. Use flashlight only when necessary!
- Go down the corridor, gravity gun the barrel away and the vent opening and speedcrawl in there
- Don’t grab the flare or the health, they’ll get rid of your sprint.
- When you turn left into the longer vent, you can hold jump and let go of sprint. You’ll keep going at spring speed, but not use any of your Aux power
- Ladderclimb the ladder in the vent
- Sprint and crouch into the new vent opening.
- Bunnyhop to keep the speed, hold forward because you can gain some speed in here
- Shoot the vent cover away and switch to pulse rifle
- Land on the ground with the pulse rifle out
- Shoot the lock and run through the door.
- Quickly use the power box on the left
- Save and stop demo.
- Load ze demo.
- Wait till the door opens and punt the car away
- Run forward whilst looking right and grabbing the white tub on the shelf
- Bunnyhop out the door and down the road
- Go past the zombies, jump over the car
- Follow down the left wall, using as little flashlight as possible
- Keep going until you hit against the zombine cart
- Wallclimb up over the top of it
- Run across the top, dropping and running down the next road
- Bunnyhop omgomgomg
- Bunnyhop past the zombines
- Hop over the car/van thing. If required you can gravity gun an antlion out of your way
- Go into the room on the left, activate the power, ignore the crates
- Run out of the room quickly. You should be able to avoid the zombie
- Hop over the car/van thing again and go in the newly opened door (If Alyx keeps dying before you can finish the level, try using the gas canister or the flare to set some zombies on fire)
- Sprint up the stairs and jump over the headcrab
- Punt the car over the antlion pit. You SHOULD kill the one antlion that gets out with it
- Sprint over to the valve and start turning it
- While waiting you can gravity gun the bike so it doesn’t get in your way
- As soon as the valve stops turning, you can sprint through the doorway, avoiding the headcrabs
- Bunnyhop down this corridor. Careful of the headcrabs and the sprinklers mess up bunnyhopping sometimes
- Avoid all of the barnacles
- Hop straight past all of the zombies, get through the doors
- Sprint up the stairs and into the next map trigger
- Stop demo and save
Segment 1: Completed 0:24
Segment 2: Completed 0:57
Final Time: 1:21
EDIT: UPDATED WITH ROUTE GUIDE CHANGES TO SEG 2, AND NEW ROUTE DEMO