TREE: Opposing Force Music

Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3

The Half-Life: Opposing Force soundtrack was composed by Chris Jensen. It was reused for the Half-Life: Blue Shift soundtrack. The Half-Life soundtrack by Kelly Bailey replaces the original one in the Steam releases of Opposing Force and Blue Shift.

However, it’s easy to get the original back. Below is a file that contains all the music, along with isntructions of how to use it.

Here is part of the text from the readme_opfor.txt.

The files contained with readme_opfor.txt are taken from the Half-Life: Opposing Force CD.

The CD music tracks have been extracted to 128kbps MP3 format and have been renamed to work with a Steam Half-Life installation.

To use them in your installation you should copy the MP3 files into your Opposing Force folder –

e.g. C:/Valve/Steam/Steamapps/YOUR ACCOUNT INFO/opposing force/gearbox/media/

If your gearbox folder doesn’t have a media folder, then create one and copy the files into there.

Quick thanks to Don for bringing this to my attention.

Download to your HDD [21.1MB]

Help me create more and better content - please support me on Patreon

Help me create more and better content - please support me on Patreon

15 Comments

  1. Wow I didn’t know Opposing Force had a different soundtrack. I think I will join in with TREE starting with this game!

  2. You are a god among men. I loved this sound track, and was always disappointed that it didn’t make it’s way into the Steam version of OpFor. So thank you.

  3. I love this soundtrack. I like it more than the HL1 soundtrack. My favorite song from the soundtrack is Storm:
    http://www.youtube.com/watch?v=YqSva-2QgHE

    1. Dias

      I don’t see how anyone could like it more than the HL1 soundtrack. So many of the songs sound similar. The whole album feels like 3-4 different songs & the rest of the album is just remixes there of.

      1. The HL1 soundtrack had too much “atmospheric” tracks and not enough actual tracks that I could actually listen to.

  4. Unq

    Thanks for posting this. The music is a critical part of the Half-Life saga, and it’s important to have Op4 and Blue Shift with their original soundtracks and music cues.

  5. That is so interesting to note!

    That will def make OF a game I have to replay.

  6. Stanley Dunigan

    I was having trouble getting the MP3 files in this package to play in Steam’s Blue Shift until Phillip told me that they need to be put in this directory: half-life blue shift\bshift\media. There won’t be a “media” directory there at first, so make one and then copy in all the MP3 files. That’ll get them to play in the game, but they won’t play in the “correct” order, going by when they play in the original version of Blue Shift (which I still have the original CD of).

    Oddly enough, Steam’s version of Blue Shift will play music from a music CD if you have one in your CD/DVD drive. If you have the original Blue Shift CD, it’ll even play the correct tracks at the correct time! If you can’t or don’t want to use the CD, you can rearrange (via renaming) several of the MP3 files in the downloadable set to make the “correct” tunes play throughout a playthru of Steam’s Blue Shift.

    I played through the original CD version of the game (with the CD in the drive for music’s sake), and I found 13 “music spots,” one of which used a duplicate tune. I don’t think I missed any, but I’ll play through the game again sometime when I have more time to verify. Below is a list of all the “music spots” I found.

    1) Section ba_tram1 (right after starting new game) => T03 & Half-Life13 (Prospero01)
    2) Section ba_canal1 (right after “Duty Calls” chapter starts) => T08 & Suspense02 (Suspense03)
    3) Section ba_canal3 (when enter room with tug-of-war zombies) => T05 & Half-Life15 (Half-Life07)
    4) Section ba_yard2 (when moving along tunnel after dropping down and shooting 2 headcrabs) => T14 & Prospero01 (Half-Life14)
    *) Section ba_yard4 (after jumping through window with soldier in it) => T05 (again)
    5) Section ba_yard5 (running for the soldier-opened door in the freight yard) => T16 & Half-Life07 (Suspense02)
    6) Section ba_xen1 (right after teleporting to Xen) => T04 & Half-Life04 (Half-Life12)
    7) Section ba_xen2 (going through tunnel right after section loads) => T10 & Half-Life08 (Half-Life02)
    8) Section ba_xen3 (when approaching the floating platform jumpathon) => T11 & Prospero02 (Half-Life13)
    9) Section ba_xen5 (when you enter outdoor area with focusing crystal machine) => T12 & Half-Life01 (Half-Life04)
    10) Section ba_power1 (as marines are cutting door open) => T07 & Half-Life16 (Suspense01)
    11) Section ba_power2 (as you move past the plunger) => T15 & Half-Life12 (Half-Life16)
    12) end credits music => T20 & Half-Life09 (Half-Life05)

    In this list, the section name is followed by a brief description of when the music triggers. After the arrow (=>) is a T and a two-digit number that says which track of the original Blue Shift CD was played at that point. For instance, right after you start a new game, track number 3 (T03) will play off the disk (remembering that track 01 is data, and track 02 is the first music track).

    Following the & is the name of the MP3 file from the downloadable OpForce music bundle that has the same tune as the one on the original Blue Shift CD. Following it in parenthesis is the name of the MP3 file that the Steam version of Blue Shift will play. Use those two bits of info to get your files renamed properly. The easiest way to do it is create a directory named “orig” in your “bshift\media” directory, then move all 19 of the original MP3 files into it. Go through the above list items one by one, copying the file with the name after the & into the “bshift\media” directory, then renaming it with the name in parenthesis.

    For example, start by copying the Half-Life13 file from the “orig” directory into the “bshift\media” directory, then rename that copy Prospero01. You’d then copy in Suspense02 and rename it Suspense 03, and so on. Whenever there’s a naming conflict during a copy operation, choose to copy and keep both files, then rename the new one. Note that you don’t need to do anything for the line that’s labeled with a * instead of a number.

    Let me know if you find any “music spots” that I missed while playing either version of the game.

    1. Alejandro

      I am sorry I have tryed a lot of things but the “renamed option” didn’t work to me. Do you have any solution? The game try to load the correct track but I can only listen the Silence 🙁 (I have The Blue Shift Unlocked and works the music when I use the wrong order from Opossing Force) Opossing force works verynice right now. So I am frustrating only with Blue Shift (I wish listen again the correct order for years and I couldn’t find other pack like this on inthernet).

      Sorry for my english and thanks for your help

    2. Alejandro

      Forget about my last post. I have descovered the problem. Thank you very much for this information. XD Now, if you track list is correct I have the Blue Shift Like the first time. Thanks again bye bye

  7. Craig Tucker

    Guys is this the soundtrack in the first mission in the helicopter,i really whant it its the best track but I cant find it anywhere

  8. Stanley Dunigan

    I was checking out the music for Opposing Force, and I found that the game version that came on the original Blue Shift CD played music in a different order than the Steam version does when using the files in this download. If you want to get the “authentic” original tune order as you play, put the original Blue Shift CD in your CD/DVD drive. I’m sure the original Opposing Force CD would work, too, but I can’t verify that since I don’t have it anymore.

    For those of you who can’t or don’t want to use those CDs, below is a list of all 19 of Opposing Force’s “music spots.”

    1) Section of0a0 (right after starting new game) => T02 & Half-Life02 (Half-Life01)
    2) Section of1a1 (exiting infirmary) => T03 & Half-Life13 (Prospero01)
    3) Section of1a2 (getting near the knife-stabbed vort) => T04 & Half-Life04 (Half-Life12)
    4) Section of1a4b (falling into large pool of water) => T05 & Half-Life15 (Half-Life07)
    5) Section of1a5 (while riding screwy tram; plays twice) => T06 & Half-Life14 (Half-Life10)
    6) Section of1a6 (running up to large closing door) => T07 & Half-Life16 (Suspense01)
    7) Section of2a1b (moving toward test flame area) => T08 & Suspense02 (Suspense03)
    8) Section of2a6 (approaching assassins” room) => T09 & Half-Life03 (Half-Life09)
    9) Section of3a2 (teleported to border world) => T12 & Half-Life01 (Half-Life04)
    10) Section of3a4 (entering big lift) => T10 & Half-Life08 (Half-Life02)
    11) Section of3a6 (gamma x-ray area) => T11 & Prospero02 (Half-Life13)
    12) Section of4a1 (when shocktrooper and drones teleport in) => T13 & Half-Life05 (Half-Life15)
    13) Section of4a4 (when drop into starting area) => T14 & Prospero01 (Half-Life14)
    14) Section of5a2 (entering voltigore sewers) => T15 & Half-Life12 (Half-Life16)
    15) Section of5a4 (approaching dam) => T16 & Half-Life07 (Suspense02)
    16) Section of6a1 (approaching mounted gun) => T17 & Half-Life10 (Half-Life03)
    17) Section of6a4b (riding lift to start of “Worlds Collide” chapter; doesn’t play right) => T18 & Suspense01 (Half-Life08)
    18) Section of6a5 (riding lift down to final battle; may not play right) => T19 & Suspense03 (Prospero02)
    19) Section of7a0 (end credits) => T20 & Half-Life09 (Half-Life05)

    The section name is followed by a brief description of when the music triggers. After the arrow (=>) is a T and a two-digit number that says which track of the original Blue Shift CD was played at that point, followed by the name of the MP3 file from the downloadable OpForce music bundle that has the same tune. Following it in parenthesis is the name of the MP3 file that the Steam version of Opposing Force will play.

    Use those last two bits of info to get your files renamed properly. Create a directory named “orig” in your “gearbox\media” directory, then move all 19 of the original downloaded MP3 files into it. Go through the above list items one by one, copying the file with the name after the & into the “gearbox\media” directory, then renaming it with the name in parenthesis. You’d start by copying the Half-Life02 file from the “orig” directory into the “gearbox\media” directory, then renaming that copy Half-Life01. You’d then copy in Half-Life13 and rename it Prospero01, and so on. Whenever there’s a naming conflict during a copy operation, choose to copy and keep both files, then rename the new one.

    I’m trying to build up an MP3 library for all of the Half-Life games, in which the tunes for each game are ordered and named according to when you first hear them in the game. I’ve pretty much gotten that done for everything except the original Half-Life game. Does anyone have the original Half-Life CD so that tune order can be verified and compared to what’s played on the Steam version? If so, leave me a reply to this comment.

    1. Unq

      Actually, the Blue Shift CD is the one that’s in the wrong order. This download has things right, the way the music played in the original Op4.

      1. Stanley Dunigan

        Yeah, that figures! I never should’ve gotten rid of my original Half-Life and Opposing Force CDs, but I never could’ve predicted that I would need them again so far in the future. So disregard previous comment, or whatever. (Phillip, you really might want to delete this one.)

    2. Alejandro

      Actually I can confirm two things: The Order of the Half-Life Tracks of Steam Version are completly correct. I have The original CD of Opposing Force And I can say too that the Order of this MP3 Pack is correct. But I can’t to say the same for BS because I only remember one track… (and its position is correct on your list “when approaching the floating platform jumpathon”) So probably all is fixed right now thanks to you XD

Leave a Reply