Opposing Force map releases. These can be installed manually or, in most cases, with MapTap.
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At the end of Blue Shift you escape with a few scientists. Dr. Rosenberg is one of them.
In this mod, you continue that story.
You are Corporal Timothy Collins, an HECU marine sent from Black Mesa to the mysterious Area 99.
Your mission: recapture Dr Rosenberg who escaped from Black Mesa and go to A-99.
As part of the HECU, you enter the Black Mesa Research Facility via an armoured personnel carrier.
It leaves you in a large warehouse-style building and your objective is nothing more than to stay alive and kill as many enemies as possible.
Good Luck!
Total Downloads: 6,63112th March 2013
23 Comments
and 14 recommendations, most say "Play It Now!"
As Corporal Shepard, you are part of a platoon of marines supplying additional security at Monte del Oscuro (an astronomical research facility). Things never work smoothly as usual. Find a way to escape and lead your men to safety. There is a flashback to a Balkan Town to rescue a UN Representative from some warlords.
Finally, Ice, a massive set of levels set in Antarctica. Something has been found in the ice and a number of foreign powers desire it. After the little accident at Monte del Oscuro, you have been given a hardship posting. Defend the base against hostile forces and rescue the scientists!
Total Downloads: 4,55727th November 2012
27 Comments
and 12 recommendations with no significant bias
You wake up in some sort of holding tube and on what seems to be a space station.
Explore the areas and find a way to open the door leading to the portal room.
Be careful, as enemies are everywhere.
Total Downloads: 2,95826th November 2012
17 Comments
and 11 recommendations, most say "Play It Later"
Author’s Note: “Retaliation picks up where Dark Operations left off. There will be no Xen or displacer in Retaliation.
Action is the main theme. It will mainly be an encounter against military targets, but there is a healthy dose of aliens too.
There will also be many sequences and a few puzzles to keep things interesting. Retaliation is the last of this series. Enjoy.”
Be sure to read the hints in the readme if you get stuck.
Total Downloads: 3,47224th November 2012
17 Comments
and 11 recommendations, most really enjoyed it!
You are part of a team of army grunts sent in to perform some specific operations.
You receive your orders and are expected to carry them out efficiently.
Go do what you have been trained to do soldier!
Total Downloads: 3,65324th November 2012
25 Comments
and 13 recommendations, 5 say "Play It Later"
Author’s Description “You start with you just simply doing your job at the launch site, but today you have a special shuttle launch and things start to fall apart.
Are you fearless enough and brave enough to conquer the terrors and enemy forces that face you?
Total Downloads: 2,20923rd November 2012
22 Comments
and 9 recommendations with no significant bias
About Nuclear Winter is a single player mission for Half-Life Opposing Force. It comprises 29 new maps plus a ton of new scripted scenes, models, artwork, character voices, sound effects and music. Nuclear Winter was recently re released with Steam support. Opposing Force is no longer required. Reader Recommendations Avoid It! Think Twice Maybe Play… Read More
Total Downloads: 5,8005th September 2006
40 Comments
and 15 recommendations, 6 say "Play It Later"
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Total Downloads: 1,7973rd December 2017
44 Comments and 2 recommendations, 1 say "Play It Later"