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Black Mesa: Protocol X is a Black Mesa add-on that aims to recreate the award winning Gearbox title "Half-Life: Opposing Force". Using Black Mesa's assets - as well as self-made assets - Black Mesa: Protocol X will feature new models, dialogue, and new environments. NOTICE: MOD HALTED.
Composer By X-RaY
creppy atmosphere there guys, ready your pants!
I like this, sets a pretty nice atmosphere.
Thanks. :)