This is the OF Mods category

Opposing Force map releases. These can be installed manually or, in most cases, with MapTap.

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A Soldier’s Tale

for Opposing Force

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!

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Total Downloads: 1,11812th March 2013
19 Comments and 10 recommendations with no significant bias

Fallback, Fire and Ice

for Opposing Force

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

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!

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Total Downloads: 1,96327th November 2012
23 Comments and 8 recommendations, 3 say "Play It Now!"

Retaliation

for Opposing Force

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

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.

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Total Downloads: 1,62324th November 2012
14 Comments and 9 recommendations, most say "Play It Now!"

The Xen Campaigns

for Opposing Force

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

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!

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Total Downloads: 1,89324th November 2012
22 Comments and 13 recommendations, 5 say "Play It Later"

Ground Zero

for Opposing Force

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

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?

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Total Downloads: 1,05723rd November 2012
21 Comments and 9 recommendations with no significant bias

Nuclear Winter

for Opposing Force

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

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Total Downloads: 1,5705th September 2006
35 Comments and 12 recommendations with no significant bias