@_Shadow_ I like the rifle and the demon head gun, but they do not work well. I strongly suggest using the PROP tool to set the temp of the CRAY to 99999, tmp to 999, life to 3, and instead of using INWR, s[eed it up with INST, PSCN, and NSCN. Do this and you can be promoted two ranks.
Set the TMP of the CRAY to 999 and the life to 3 for the monster head.
Try putting all the pieces already inside the weapon.