This video shows how to earn Stealth Technology Achievement Black Mesa and how to escape the Hangar in Surface Tension without alerting the Soldiers Stealth Technology Black Mesa.
In Chapter 12 Surface Tension, you need to follow the guard to quietly walk past four HECU Marines. Follow the guard: go right, bend down, run down the stairs, wait behind the truck, then run to the door (behind the crates). The achievement unlocks once the guard opens the door.
Black Mesa Stealth Technology Trophy Guide is a part of Black Mesa achievements list: [ Ссылка ]
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