CategoryDocuments images{{Article|Image}}
{{Information
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|description=Barney Calhoun's letter of reassignment.
|source=''Half-Life Blue Shift'' instruction manual
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|licensing={{Fairuse}}
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FileBarney files.jpg|Original version.
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{{Information
|attention=
|description=Security Shift Schedule.
|source=''Half-Life Blue Shift'' instruction manual
|author=
|filespecs=
|licensing={{Fairuse}}
|other versions=
FileBarney files.jpg|Original version.
|cat artist=
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|cat type=CategoryHalf-Life Blue Shift imagesCategoryOfficial images
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