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Chapter 5:	Under the Radar 
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Follow and listen and then look out the window to see your next task. Then
go with the man to the trap door. Drop down it and start clearing the boards
from the window. Send a saw blade through the window to take out the Zombine
and whatever else is standing on the other side. Use the gas tanks in here and
the other saw to take out as many zombies as you can. Then you can run out and
take out all the rest, or just run to the back of the truck on the right and 
get out of this place. There are just two crates in the sludge on the left, so
if you don't mind you can just move on. Jump on top of the truck when you 
want and clear the window to jump through.

Open the door and drop down for more zombies. Kill them, or let the guns across
the way get them. Either way, move forward along the partial wall to find the 
hole in a fence. Crawl through and stay low to avoid being shot up. Crawl
forward and into a pipe. Kill the headcrab on the other side, or just use the
GG to keep it at bay until it dies. 

Break the crate and pick up some grenades. Crawl forward, staying behind the 
cover of the cars, and peek around the corner on the right to find a turret
along the fence. If you move slightly out into the open it will reveal its 
location. You need to toss a grenade in its direction in the hopes that you
knock it over. 

Go forward and toward the building at the other end. Eventually you will be 
behind some bigger vehicles and you can stand up. When you're ready, poke your
head through the window and start firing on the soldier inside. Then hop in
and look for another guy out the other window. Collect some supplies and then
find a car with an open back that you can crawl through.

In the next path you will run into more zombies, and hopefully the guns will
get those and the headcrabs. Move quickly because the torso zombies will keep
spawning. Go through the white car and ignore the first soldier you see 
chasing a torso, just keep following the trail of cars. Kill the next soldier
you see if you can get him and keep moving. There will be a fast torso at 
the end, so have your shotgun ready. When you finally reach the end of the 
cars, you can stand up. 

At the back and around the corner is a Zombine, if you want to meet him. Just
jump on top of the truck, kill the headcrab, and collect some ammo. Jump on the
roof and kill the soldiers remaining in the junkyard. Then turn to see some 
glass that some soldiers have probably broken. Just start tossing grenades 
down inside and in all directions. Go back to the truck to get more. Drop down
inside when you feel the coast is clear, but the Combine may have dodged some 
of your frags. You know all is clear when the game auto-saves.

Drop down and collect all the items inside. Refill your grenades with the
box in here and then go to the wall with the guns. Press the red button to 
open some case. Get out a grenade and drop it inside (LT on 360) and then
stand back. The thing will blow and take out the guns, and open up a path
for you to exit.

Go outside with your shotgun and take out the zombies in your way. Make your 
way toward Alyx and head back to the garage. Hop in your fixed car and head
out. 

Move across the small bridge and into the sludge which you are safe from. Zip
by the zombies and you will see a blip for a radar cache. Keep moving until the
yellow dot on the screen in your car is in the center. You should stop at a 
white van in the path. Go around to its back and stand away. Shoot the red
barrel to blast away the car on top of it. Now bust the crate from the back
and shoot the items toward the hole on the side. Go to the hole and pick up
the items.

*NOTE: To get the achievement credit for finding a cache, you must break the
crate with the radar on it.*

Proceed until you see two more yellow blips. Stop by a building with a white 
van stuck in its side and go through the van. Inside, grab some grenades and 
examine the big metal plate in the center of the room. Use the GG to knock it
back down and then you stand by the van. What you will do is drop a grenade 
down below the plate, stand on the plate, and then get blasted up to the power
generator. When you do, press the button to unlock the gate below, and then
collect your rocket launcher and other items. 

Get out and get in your car to go across the road and enter a junkyard. Go to
the tiny shack up the path and get out. The cache is under the floor. Start
pulling the floorboards and you will see the many crates underneath. It's not
the best of rewards, but it's something. Fight off the zombies, get in your
car, and cruise on down the road to the tunnel on the right.

After you emerge you will soon get another blip. Turn left and go up the 
road. It will wind and bend around a bit, but only get out when the blip is 
very close. The cache is behind a downed tree, and through a hole in the rock.
Crawl through, move the rocks out of the way, and claim the small reward. Get
back in your car and keep going. 

You can get out when you reach a couple of building in the road, but all you 
get are some health packs. Just go around the cars and keep to the road. But
when you bend around a big house, you might consider getting out and going
inside. The basement has a headcrab and crossbow ammo, and the rest of the 
place will fill up your suit armor. That's all, get back on the road. 

But when you try to follow the road you will fall into a trap. Now you must 
fall back into this house. Your best move would be to go to the big living 
room area and try to snipe as many soldiers as you can. Eventually they will 
start to try and enter the house, so when you're out of ammo, go to the 
entrance and greet them. Just keep moving around the various areas of the 
house to get them to show up. 

Go down to the basement and then come up back to the living room. A Hunter 
should try to get inside, but if you have one alt round in your rifle, use
it now (press LT) and that should take out the Hunter. There are still some 
left. Now go to the basement where you might run into one. Get around it and 
fight your way to the yard area. Or you could use the living room door when
a Hunter busts that open. 

When in the yard just use all the tools you have left to finish off this 
ambush. Rifle rounds work well, and so does the rocket launcher. However you
do it, do it. 

After that, make your way back down the road you came. You run into another 
Hunter and some soldiers at the first set of buildings. Take them out, maybe
with a bunch of lucky grenades, and then collect the items. In the building
on the right will be a force-field guarding the power source of the other 
shields, as well as a turret. Go to the right and get by the fence and use 
your GG to pull the turret out of position. Then Alyx will take down the 
fields. Go into the room and then you're stuck.

Look to the right to find a ladder with a lock. Break it and climb up. Move
the crates out of the way and follow a narrow path around to a raised space.
Jump into this space, kill the headcrab, crawl across the pipe, and then drop
down behind the field. Grab some rifle ammo and then move some crates to 
reveal a crawlspace. Go through and blast the ball with your GG to unlock the
road. Go out of this room and take Alyx back down to the car. There is an
open building to the right of the car with suit armor and health. Get in and
start drivin'.

Hop off a ramp to keep on track. Past a burning car, follow this road onto a 
bigger road and follow it. Soon you see the final radar cache sign. Hop out
of your car and go around a rock and look up. The stuff is up there, but I
could not find out how to get that stuff down. All you need for the achievement
is to crack one crate, so do that. As far as getting the items, you could blast
them out with some rockets of SMG grenades, if you think the rewards are worth
it (you get one SMG grenade with it, so you may as well). Anyway, keep going
down the road and into a tunnel.

Follow the road just a bit until you see an opening in the railing on the 
right. Go down and hang left until you hit the gate. Get out and go around on
foot. Approach the dropship to find a STRIDER!!! But perhaps the best pet in
the world will show up and all you have to do is watch.

*NOTE: Make save slots if you want that achievement. One here and one as soon
as Dog clears the ship. Come back to that one if you lose and want another
shot.*

After, Dog opens the gate, so get your car and drive through. Pick up Alyx as
the Dropship is moved. If you want to beat Dog, you have to get moving ASAP.
When you round the corner, go up a path on the right and follow it to the 
base. The trick is to use your turbo three times: once at the start, once up 
the hill, and then once during the final stretch. Try not to use turbo during
curves or near that bend at the top of the hill with the railing. Any collision
during a turbo is instant-loss. 

Either way, at the base follow Alyx.