iRaven - I agree. The rule are abundantly clear to all personnel going on ops - certainly for the 27 years I have been in uniform. There are ways and means to bring back items (ie offensive weapons) legitimately (qv) provided they are not covered under OP PLUNDER.*
* Mind you, I never forgave my father for handing in my Grandfather's Mk VI Webley from the Great War when my Grandmother died. It had spent a peaceful 55 years sitting in her top drawer!