Opposing Force Complete Guide (25th Anniversary)

Is developed by Gearbox Software and published by Valve on Nov 19th, 1999 just a year after the Valve's debut Half-Life and being the first Expansion

Story

Opposing Force follows HECU Marine Adrian Shepard as he's tasked to traverse the collapsing Black Mesa Research Facility while avoiding the hostile Xenians and new Race X all while locating and capturing Gordon Freeman and eliminating anybody associated with the Resonance Cascade

Full Half-Life: Opposing Force Walkthrough

The Half-Life Event of 2023 (besides the 25th Anniversary of course) was OpposingTheBar. Another event for breaking the player peak this time for Opposing Force. You can view the event here

OpposingTheBar[opposingthebar.lambdageneration.com]

Open the Developer Console with "~" and then type sv_cheats 1 before entering any commands. If the dev console doesn't open by default, locate the config file and make sure BIND "~" toggleconsole is there or add it to launch options.

• sv_cheats 1 - Enables Cheats
  
• God - Invincibility
  
• Noclip - Fly through walls
  
• Impulse 101 - Gives all weapons
  
• Impulse 102 - Gives the HEV Suit
  
• Maps * - Shows list of maps
  
• give weapon_ - Gives weapon of choice
  
• give item_ - Gives item of choice
  
• Chase active_1 - Thirdperson over the shoulder
  
• Thirdperson - Play in Thirdperson!
  
• Firstperson - Play the default perspective
  
• gl_texturemode gl_nearest - Turns off Texture filtering
  
• Default_fov - Set Viewmodel Distance (Default is 90, while 106 is the correct Ratio for 16:9-1080p.
  I reccomend 110 for 1440p)
  
• hud_draw 1 - Turns on HUD while 0 turns it off
  
• violence_agibs 1
  
• violence_ablood 1
  
• violence_hblood 1
  
• violence_hgibs 1
  These 4 can enable the Violence and Blood for NPC's. 0 Disables it
  

Will add more!

Launch Options

If you wish to have stuff automatically set for you you can add them to the launch options peramaters instead.
Locate the game in your library, click on properties and in the "Launch Option" field add whatever you want with - infront of it like this for example
-noborder -windowed -w1920 -h1080

To play Half-Life: Opposing Force in Windowed Borderless:it works the same for HL1, BS and other GoldSrce and Source games.

Library > Half-Life > Properties > Launch Options

-windowed -noborder

After this, launch the game and enjoy!

This also works for all GoldSrce and Source games like Sven Co-op or Team Fortress 2.

To achieve the OG 1999 Textures (which are the better way to play Half-Life) simply type this into the console

gl_texturemode gl_nearest gl_ansio "0" gl_round_down "0"

To keep it consistent, create a userconfig.cfg file with this and place it into the "valve" folder inside your Half-Life Directory. Keep a backup in case you want to remove it.

To play the Default Steam way put this instead

gl_texturemode gl_linear_mipmap_linear

As of November 17th, 2023 Valve has fixed FOV for the 25th Anniversary Update. The game now has the Widescreen FOV option that you can just use instead.

Half-Life's FOV by Default is 90. So keep it at 90 if you have the Widescreen option enabled
If you want a higher FOV of 110 then make sure to disable it

If you're looking to wipe your saves and start a fresh playthrough or even backup saves, its super easy and not hard to find.

First, go to your library and the game. Open the properties on it and browse local files. From there you want to locate the Gearbox folder then "SAVE". Within this folder is all your local saves that you can do with as you please.

NOTE: Steam Cloud will also save them so if you don't want them pre-saved disable the Cloud until you wipe the folder and then re-enable it.

Hope this helps!

Other than Half-Life 1 G-Man appears a few times in Opposing Force before appearing again in Half-Life 2 and the Episodes.

BOOT CAMP
As soon as you go outside look up to the right and G-Man will be in the window of the right building

WELCOME TO BLACK MESA
After getting the Wrench and heading upstairs you can see G-Man talking to a guard behind the door to the right of the stairs
In the room that fills with toxic goo, G-Man can be seen in the control room next to the exit door as he saves you

WE ARE PULLING OUT
As you exit the room after the 2 HECU interrogating a scientist G-Man can be seen on the other side of a blast door

PIT WORM NEST
G-Man can be seen in the window of the garbage compactor room

FOXTROT UNIFORM
Outside on the Dam from Surface Tension, G-Man can be seen where Gordon would goto

THE PACKAGE
You can see G-Man re-arming the bomb through the window

ENDING
After defeating the Gene Worm, you'll be teleported to a plane with G-Man

CH0 - Boot Camp

• ofboot0
  
• ofboot1
  
• ofboot2
  
• ofboot3
  
• ofboot4

CH1 - Incoming

• of0a0

CH2 - Welcome To Black Mesa

• of1a1
  
• of1a2
  
• of1a3
  
• of1a4
  
• of1a4b

CH3 - We Are Pulling Out

• of1a5
  
• of1a5b
  
• of1a6

CH4 - Missing In Action

• of2a1
  
• of2a1b
  
• of2a2
  
• of2a3

CH5 - Friendly Fire

• of2a4
  
• of2a5
  
• of2a5b

CH6 - We Are Not Alone

• of3a1
  
• of3a1b
  
• of3a2
  
• of3a3

CH7 - Crush Depth

• of3a4
  
• of3a5
  
• of3a6

CH8 - Vicarious Reality

• of4a1
  
• of4a2
  
• of4a3

CH9 - Pit Worm's Nest

• of4a4
  
• of4a5

CH10 - Foxtrot Uniform

• of5a1
  
• of5a2
  
• of5a3
  
• of5a4

CH11 - The Package

• of6a1
  
• of6a2
  
• of6a3
  
• of6a4

CH12 - Worlds Collide

• of6a4b
  
• of6a5

CH13 - End

• of7a0

NOTE: Codes from HL1 also work

Weapons

• give weapon_pipewrench
  
• give weapon_knife
  
• give weapon_grapple
  
• give weapon_glock
  
• give weapon_eagle
  
• give weapon_mp5
  
• give weapon_shotgun
  
• give weapon_grenade
  
• give weapon_squeak
  
• give weapon_tripmine
  
• give weapon_m249
  
• give weapon_sniperrifle
  
• give weapon_sporelauncher
  
• give weapon_shockrifle
  
• give weapon_displacer
  
• give weapon_penguin

Ammo

• give ammo_9mmclip
  
• give ammo_357
  
• give ammo_glockclip
  
• give ammo_9mmbox
  
• give ammo_556
  
• give ammo_762
  
• give ammo_spore
  
• give ammo_9mmAR
  
• give ammo_RPGclip
  
• give ammo_buckshot
  
• give ammo_ARgrenades
  
• give ammo_mp5grenades

Items

• give item_vest
  
• give item_battery

Like my Half-Life 1 Achievements these are purely for fun until Valve adds real ones (Please Valve)

1. OPPOSING FORCE
Complete the game on Hard
2. BOOTCAMP
Complete Basic Training
3. OSPREY DOWN
Saved by a Scientist
4. THICK OF IT
Get saved by an outside force
5. HMM DONUTS
Find Otis
6. BROTHERS IN ARMS
Meet up with your squad mates
7. WE ARE LEAVING
Save a comrade from the Black Ops
8. SHOCK & AWE
Acquire the Shockroach
9. FOLLOW FREEMAN
Find Freeman and follow him into Xen
10. RACE X-TERMINATED
Defeat the Pit Worm
11. BARNACLE BAILEY
Find and use the Barnacle
12. SHOCKED
Kill a Shocktrooper with their own weapon
13. I CAME AND I SAW
Kill 100 enemies with the M249
14. SPORE-SPREE
Kill 50 enemies with the Spore Launcher
15. PENGUINS OF BLACK MESA
Get 25 kills with the Penguin grenade

Half-Life has thousands of addons and mods but Opposing Force also has really good ones too so heres some i highly recommend checking out. You still need to install them in the main Half-Life directory in steam/steamapps/common/Half-Life/gearbox


Half-Life: Field Intensity

If you're like me whos been in the modding scene for years and want to make maps or mods for your favorite games including Half-Life you'll only need a few essential tools that TWHL[twhl.info] can provide.

1. JACK
2. VHLT
3. HLAM

For Level Editing and creating maps you're gonna need JACK https://store.steampowered.com/app/496450/JACK/

For compiling you need VHLT

Viewing models and more you'll need Solokillers Asset Manager

The Whole Half-Life[twhl.info] is your one stop shop for all things Half-Life Modding.

If you're interested in taking cool screenshots or recording background footage thats cinematic, this guide should help out. Shout out to the creator.

https://steamcommunity.com/sharedfiles/filedetails/?id=1172439308

Half-Life Website[www.half-life.com]
ModDB
TWHL[twhl.info]
LambdaGen[community.lambdageneration.com]

STEAM GROUPS
LambdaGeneration
BlackMesa
MisfireSven