{{DISPLAYTITLE''{{PAGENAME}}''}}
{{Article|hl1|safe}}
{{Chapter}}
{{Chapter Infobox
|image=FileOf1a2 crash.jpg|250px
|name=''{{PAGENAME}}''
|hidei=yes
|location=
|hidep=
|era=
|maps=
|designer= Rob Heironimus.html">Mike Wardwell Rob Heironimus Randy Pitchford
|previous=''Incoming''
|next=''"We Are Pulling Out"''
}}
'''''Welcome To Black Mesa''''' is the second chapter of ''Half-Life Opposing Force''.
==Overview==
{{See2|story information|the Half-Life Opposing Force storyline article}}
As the chapter begins, Adrian Shephard wakes up in a Black Mesa Medical Lab|medical section of the facility. He and his comrades were saved by Black Mesa Science Team|scientists, who appear to be unaware of their mission, after they were attacked by the aliens. He is sent to the crash site to radio for help, where he is told that the Hazardous Environment Combat Unit|military is pulling out and he must make it his way through the Black Mesa Transit System|transit system to reach the extraction point.
At some point, Shephard finds himself trapped in a large room with rising hazardous waste. The G-Man appears and opens the door to the exit and then disappears. Eventually he reaches the transit system and finds an empty tram, which automatically starts when he gets in it.
==Behind the scenes==
The chapter was created by Mike Wardwell, Rob Heironimus, and Randy Pitchford.http//bluesnews.com/cgi-bin/finger.pl?id=293&time=20000523170722 Randy Pitchford's .plan update on Blue's News (March 23, 2000) The demo version of the game contains the first three maps of the chapter. The last map has some minor differences. The multiplayer map ''Crash Site'' is based on the map "of1a2" of the chapter. Near the crash site, an FileOf1a2 fence.jpg|overweight security guard touches a fence, gets electrocuted and die. The animations for this scripted sequence were originally created for ''Half-Life'' but left unused. It was to be used in the FileC2a5 wall.jpg|desert section of the chapter ''Surface Tension''. The design for the large freight elevator with two Vortigaunts on it appears to be based on a similar elevator seen in the manga WikipediaAkira (manga)|Akira. The same design is also used in ''Half-Life'' and ''Half-Life Blue Shift|Blue Shift''.
The FileOf1a4 room.jpg|original design for of1a3's control room can be found in the map of1a4, behind the level transition brush. In the map of1a4b, there is an FileOf1a4b ladder.jpg|unused ladder in an inaccessible sewer area. The same type of ladder can be found throughout the game. In the same map, there are unused nodes on the path that leads to the Loader room.
===Easter eggs===
The medical section of the chapter has two Easter eggs. In the clean room with CAT scanners, there is a computer screen with an FileOf1a1 baby.jpg|ultrasound image on it. This is a photo of Randy Pitchford and his wife Kristy Junio's son.http//gearboxsoftware.com/community/articles/1278 Personal Touches in ''Borderlands The Pre-Sequel'' on Gearbox Software's official website (December 11, 2014) The FileOf1a1 computer.jpg|computer at the security checkpoint can be used by the player. When used three times, it crashes and gives a WikipediaBlue Screen of Death|Blue Screen of Death message.
==Gallery==
===Pre-release===
FileOf1a1 early03.jpg|The infirmary.
FileVideo infirmary01.png|The medical section.
FileVideo infirmary12.png|Ditto.
FileVideo infirmary05.png|Ditto.
FileVideo infirmary02.png|Ditto.
FileOf1a1 early01.jpg|Ditto.
FileOf1a1 early02.jpg|Ditto.
FileVideo infirmary03.png|The clean room.
FileVideo infirmary07.png|Ditto.
FileVideo infirmary15.png|Ditto.
FileOf1a1 early05.jpg|Ditto.
FileHlof official06.jpg
FileVideo infirmary04.png|Security checkpoint.
FileOtis wrench.jpg|Ditto.
FileOtis helmet close.jpg|Ditto.
FileOf1a1 early04.jpg|Ditto.
FileOf15.JPG|The laser room.
FileVideo infirmary09.png|Ditto.
FileVideo infirmary10.png|Ditto.
FileVideo infirmary11.png|Ditto.
FileOf1a1 early06.jpg
FileOf1a2 early04.png|The crash site.
FileOf1a2 early01.jpg|Ditto.
FileOf1a2 early02.jpg|Ditto.
FileHlof official02.jpg|Ditto.
FileOp4 install1.png|Ditto.
FileOf1a2 early03.jpg
FileOf1a3 early11.jpg
FileSoldier explosion.jpg|The waste room.
FileShephard collapse.jpg|Ditto.
FileOf1a3 early01.jpg|Ditto.
FileOf1a3 early02.jpg|Ditto.
FileOf1a3 early03.jpg|Ditto.
FileOf1a3 early04.jpg|Ditto.
FileOf1a3 early05.jpg|Ditto.
FileOf1a3 early06.jpg|Ditto.
FileOf1a3 early07.jpg|Ditto.
FileOf1a3 early08.jpg|Ditto.
FileOf1a3 early09.jpg|Ditto.
FileOf1a3 early10.jpg|Ditto.
FileOf1a3 early12.jpg
FileOf1a4 early01.jpg|of1a4.
FileOf1a4 early02.jpg|Ditto.
FileOf1a4 early03.jpg|Ditto.
File1298.JPG|Ditto.
File3big.jpg|Staged screenshot.
FileOp4 install3.png|Staged screenshot.
===Retail===
FileOf1a1 infirmary.jpg|The infirmary.
FileOf1a1 hall01.jpg|The medical section.
FileOf1a1 hall02.jpg|Ditto.
FileOf1a1 zombie01.jpg|The clean room.
FileOf1a1 zombie02.jpg|Ditto.
FileOf1a1 gate.jpg|Security checkpoint.
FileOf1a1 wrench.jpg
FileOf1a1 laser01.jpg|The laser room.
FileOf1a1 laser02.jpg|Ditto.
FileG-man of1a10004.jpg
FileOf1a2 crash.jpg|The crash site.
FileOf1a2 power.jpg|The power generator.
FileOf1a3 waste01.jpg|The waste room.
FileOf1a3 waste02.jpg|Ditto.
FileOf1a4 waste.jpg|The next room.
FileOf1a4 tunnel.jpg|Transit system tunnel.
FileOf1a4b loader.jpg|The blocked Loader.
FileOf1a4b tunnel.jpg|Transit system tunnel.
===Other===
FileOf1a1 baby.jpg|The ultrasound image.
FileOf1a1 computer.jpg|The crashed computer.
FileOf1a2 fence.jpg|Guard getting electrocuted.
FileOf1a3 akira.jpg|Akira elevator.
FileOf1a4 room.jpg|Unused room design.
FileOf1a4b ladder.jpg|Unused ladder.
==Associated media==
*{{ImagecatInline|Welcome To Black Mesa images}}
*Half-Life Opposing Force soundtrack|Soundtrack, ''The Awakening / Orbit''
*Half-Life Opposing Force soundtrack|Soundtrack, ''Name''
*Half-Life Opposing Force soundtrack|Soundtrack, ''Spooky Oozings / Listen''
==References==
{{reflist}}
{{Chapters}}
CategoryHalf-Life Opposing Force chapters
