rem Removing all the dead .def files from your models folder.

del ..\base\models\grunt_~3.def
del ..\base\models\grunt_~4.def
del ..\base\models\grunt_~5.def
del ..\base\models\humv.def
del ..\base\models\humv_s~1.def
del ..\base\models\humv_tan.def
del ..\base\models\lavabu~1.def
del ..\base\models\lavaro~1.def
del ..\base\models\lavaro~2.def
del ..\base\models\lavaro~3.def
del ..\base\models\lavaro~4.def
del ..\base\models\meathook.def
del ..\base\models\passwo~1.def
del ..\base\models\pulsefx.def
del ..\base\models\softwa~2.def
del ..\base\models\softwa~4.def
del ..\base\models\stalag.def
del ..\base\models\stump.def

del ..\base\models\detona~1.def
del ..\base\models\engine.def
del ..\base\models\genroc~1.def
del ..\base\models\pulses~1.def
del ..\base\models\qp_burst.def
del ..\base\models\spraygun.def
del ..\base\models\tech_g~1.def
del ..\base\models\thrall~1.def
del ..\base\models\tri.def
del ..\base\models\view_*.def
del ..\base\models\xyz.def