It's certainly unique....
I have an idea for you. Instead of trying to model your own sub right away why not try adding one from the warehouse on google.
It's a great place to find decent models and there free as well.
But if your adamant about adding Brick...... Well it should be easy enough
I myself am trying and failing in my attempts to model a submarine, but I am striving to give the game a Nimitz carrier and possibly a small surprise also if all goes well.