|This article is non-canon.|
The subject matter of this article does not take place in the "real" Half-Life and Portal universe and is considered non-canon.
|Warning! This article has yet to be cleaned up to a higher standard of quality, per our Cleanup Project. It may contain factual errors and nonsense, as well as spelling, grammar and structure issues, or simply structure problems. Reader's discretion is advised until fixing is done.|
You can help clean up this page by correcting spelling and grammar, removing factual errors and rewriting sections to ensure they are clear and concise, and moving some elements when appropriate.
Capture The Flag
- “When the Black Mesa facility was being developed, experiments were undertaken with construction of a five sided structure that designed in such a way that the entire building would act as a giant transmitter/receiver. The building was nestled in the rocks near the Black Mesa Research Facility and quickly used as a headquarters for the invading military assault teams. Although the Black Mesa blueprints don't show it, a second pentagram shaped tower was built near the first on the other side of a thick rock wall. The civilians hoped they could hide in the secret second tower until the chaos was over, but soldiers quickly discovered the structure and blew holes through the rock wall to allow them to attack.”
- — Opposing Force CTF Description
- Opposing Force CTF credits (