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Opposing Force - Welcome To Black Mesa

The
first episode of Opposing Force has you flying into the Black Mesa
Research Facility in New Mexico for an unspecified mission. It appears
at first glance to be a babysitting job, but the ride inbound quickly
proves otherwise, and you immediately find yourself in serious trouble.
You'll quickly want to get on your feet and grab some weapons to defend
yourself. There are a few interesting puzzles in this episode, but stay
alert and you'll begin to make your way safely to your extraction point.
- During the opening sequence, don't forget to look around -- events happen outside that you don't want to miss.
- After waking up in the laboratory, listen to the scientist and head
out to get your PCV vest. It is on a table in the area where the
scientists are examining alien specimens. There is a scripted sequence
where a zombie throws a scientist through a glass window, and then
begins to chase you. Don't let him catch you by surprise.
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- After getting your vest, head down to the area where a security guard
is shooting a zombie. After he kills the zombie, talk to him and have
him open the security doors. He will only open the doors if you have
your vest.
- After going through the doors, pick up the red pipe wrench on the
floor. This will be your primary weapon for a bit, so don't miss it!
- You'll come across a lab room with lasers blocking your path. Crouch
under the lasers, and then smash the mirror with the purple laser with
the wrench. This will cause a chain reaction that will deactivate the
lasers and allow you to continue to the next area.
- Continue through the hallways and head outside to the cliff face.
You'll have to do some jumping to make your way to the exit door, and be
sure to pick up the knife by the dead Vortigaunt.
- Once through the door, crawl through the hole in the rock and emerge
outside where you'll find a downed chopper. You'll need to pass the
chopper to progress, but first you'll have to turn off the power or
you'll get electrocuted.
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- Head over to the area where the generators are fenced off, and watch
as a security guard falls victim to a now-electrified fence. The power
switch is behind those gates, but you'll have to access it through the
vent on the side.
- Use your night vision to find your way through the vent, and be sure
not to get zapped by the electricty when you emerge inside the fenced
area. Find the power switch, turn it off, and leave via the now unlocked
gate. Don't miss the pistol on the floor next to the security guard
before heading back.
- Once back at the chopper, listen to the radio, where you're told to
make your way to the extraction point. Head underground via the nearby
ladder, and continue until you run across a Vortigaunt. Shoot him, grab
the shotgun next to the dead Marine, and continue.
- You'll eventually come to a room where all sorts of bad things are
about to happen. As soon as you near what looks like the exit,
everything starts to explode -- the floor starts breaking away, the room
begins to fill with radioactive sludge, and the ladder leading out of
the slime becomes electrified.
- Once the room starts to collapse, head back to the entrance of the
room and stay to the far right. Wait there as the rest of the floor
collapses around you, and a catwalk should drop right in front of you,
providing a path to the beams above. Go up and look around -- you'll see
one of the doors has a window next to it, where the G-Man will appear
and open the exit door for you. Head across the beams and exit to
safety.
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- Continuing downstairs, you'll reach a room flooded with more
electrified sludge. To continue, you'll have to jump across and find the
control room to operate the conveyor. Move the platform from right to
left, and use the platform as a bridge for you to climb over.
- Look for a broken pipe in the wall and drop down further into the
sewers. Swim around for a bit and you should find a ladder in the corner
leading back up.
- You'll eventually emerge above a loading area flooded with yet more
radioactive sludge. There's a drainage control below, but access to the
lower area is cut off during loading, and the loader is currently stuck
behind some crates. Shoot the explosive crate, which will allow the
loader to finish its job and allow access below. Climb down and across
the crates to the drainage control, and drain the room.
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- Open the door and head up the elevator, where you'll meet a few
Houndeyes and an empty tram car. After dispatching of the Houndeyes,
move the cart across the floor until it's directly in front of the tram,
providing a bridge. Carefully make the jump into the tram, and it will
automatically start up, ending the episode.
Next: Episode 2: "We Are Pulling Out"
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