War games helmets

I downloaded the war games map pass and have been using the strider helmet but have noticed evert 2nd or 3rd time i start up halo 4 i have to re download the map pass as the 2 helmets that come with it have disappeared but tonight i had to download it again i played one match of btb and it was gone and im getting sick and tired of redownloading the pass is this happening to any one else???