Bár a főszereplő (Adrian Shephard) az Opposing Force-ban szerepel, a leírás szerint viszont mindhez köze van:
"Beyond Black Mesa is a short Independent fan film Inspired by the Half-Life Video Game series. This is an action packed short film centering around Adrian Shephard and a band of resistance fighters struggling to get out a warning about the impending invasion.
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This film is not HL,HL2 or Opposing Forces. It's a short fan film that takes place in the Half-Life world."