Ordinance Storage Facility can refer to:
- The Ordinance Storage Facility featured in Topside Motorpool in Half-Life, tripped with Laser Tripmines
- The Ordinance Storage Facility featured above Sector E Materials Transport in Opposing Force, where the Mark IV Thermonuclear Device is first seen
- The larger Ordinance Storage Facility connected to Sector E Materials Transport and featured above the Gene Worm portal in Opposing Force
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