AF AS ) ▁to ▁develop ▁a ▁concept ▁for ▁incorpor ating ▁PC s ▁into ▁art illery ▁training , ▁and ▁was ▁completed ▁in ▁ 1 9 8 6 . ▁ ▁It ▁replaced ▁summer ▁art illery ▁live ▁fire ▁training ▁for ▁cad ets ▁at ▁West ▁Point ▁in ▁ 1 9 8 6 ▁and ▁ 1 9 8 7 . ▁ ▁One ▁of ▁the ▁US AF AS ▁students ▁involved ▁in ▁the ▁battle field ▁research ▁project , ▁Captain ▁( l ater ▁Colonel ) ▁Bill ▁Er win , ▁volunte ered ▁to ▁continue ▁to ▁develop ▁the ▁concept ▁into ▁an ▁actual ▁application ▁during ▁his ▁follow - on ▁assignment ▁to ▁the ▁US AF AS ▁Director ate ▁of ▁Training ▁and ▁Do ctrine . ▁ ▁Vers ions : ▁ ▁M INIT S FO ▁- ▁Original ▁version ▁using ▁a ▁Digital ▁Message ▁Device ▁( D MD ), ▁virtual ▁map , ▁and ▁CG A ▁graphics . ▁ ▁V TS FO ▁- ▁Rep la ced ▁the ▁D MD ▁with ▁keyboard ▁interface ▁for ▁use ▁at ▁West ▁Point . ▁ ▁N G FT S FO ▁- ▁Naval ▁Gun fire ▁version ▁using ▁E GA ▁graphics , ▁actual ▁scenes ▁from ▁San ▁Clement e ▁Island ▁training ▁area , ▁and ▁incorpor ating ▁effects ▁of ▁disp ersion ▁between ▁r ounds . ▁ ▁E volution ▁of ▁a ▁military ▁video ▁game ▁ ▁As ▁originally ▁en vision ed , ▁the ▁M ini TS FO ▁would ▁be ▁a ▁complete ▁system ▁that ▁required ▁only ▁a ▁computer ▁to ▁play . ▁ ▁This ▁meant ▁that ▁there ▁had ▁to ▁be ▁some ▁way ▁to ▁see ▁targets ▁on - screen , ▁some ▁way ▁to ▁locate ▁the