I HAVE GRAW ON PC AND IM ON MISSION 4 BUNKERS IT SAYS I NEED C4 TO BLOW UP THE BUNKERS,I HAVE GOT TO THE FIRST RALLY POINT AND CLICKED X TO RESUPPLY BUT THERE IS NO C4 IN THE ARMORY IHAVE REINSTALLED THE GAME BUT THE C4 IS STILL NOT THERE I CANT COMPLETE THE MISSION WITHOUT THE C4 CAN ANYBODY HELP WITH THIS AM I LOOKING IN THE WRONG PLACE