I want to add a model from SH5 to Garry's Mod?

[arDz]

There is a Battleship Bismarck model in Silent Hunter 5, I've located the model file, but is is possible to add it, will it work, and if it is possible, how?

http://dailydigitaldeals.info/wp-content/uploads/2012/01/11/35/smile.gif