There are 3 releases tagged with “Opposing Force content”

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Half-Life: The Infected

for Half-Life

Enjoy a new 28 Map Half-Life campaign. Take the role of Gerald Backman, an industrial electrician interning at Black Mesa at the time of the resonance cascade. Face off against all the enemies from Opposing Force.

Half-Life: The Infected uses Opposing Force content but does not require Op4 to be installed.


Total Downloads: 94616th June 2020
15 Comments and 10 recommendations, most say "Play It Later"

Military Duty

for Half-Life

You are Alexander Shepard; Corporal and a soldier of the Hazardous Environment Combat Unit.

You don’t know exactly what’s going on. But orders came in to pack up everything and head out for a highly classified mission.

The destination is Black Mesa Research Facility.

Nobody knows for sure what has happened down there but you will find out soon enough.


Total Downloads: 11,35328th June 2015
36 Comments and 10 recommendations, most say "Play It Now!"


for Half-Life

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

“A few hours after Adrian Shephard and his squat got scattered allover the Black Mesa Complex, headquarter sent a rescue team to search the lost crew.

But as we all know even a military operation never turns out as planned…

Finding himself in the misery a soldier tries to do the best out of his lonely situation. Searching for allies he quickly becomes a major part in an issue he´s never been training for.”


Total Downloads: 11,0192nd March 2013
107 Comments and 16 recommendations, most say "Personal Favourite"