Thread:BehindTheEight/@comment-3991680-20140612002528/@comment-6969786-20140612015953

You can write it like Big F**king Gun if you really need to.

But, remember if it is not stated by kixeye in a official forum or in a In-Game description its is just speculation or opinion.

Try and keep the information verifiable "Facts".

BFG is used in several games, mostly for hand held weapons so it could be a reference to any one of them or its a descriptive name after all it is a Big F**king Gun.