It’s the old shot gun play though instead of just being the fullback hiding behind the backrower they have multiple backs and forwards lined up behind one another. They start much further in field and as a unit move out to the sideline taking whichever options the defence presents.
I have to appreciate the good coaching gone in here. Instead of trying to recreate the Flying V that Penrith can only do off the back of Yeo, Cronulla without a ball playing lock have created their own varitation of the sweeping block play, but instead of one to one fullback behind a backrower they have a play that involves most of the team.
Another team with their own structure and style are Melbourne, they do it off scrum plays where they have a few of their playmakers move from right to left or left to right once the defence is set, a lot like an NFL line up. Once in action they have moved from an even defensive side over to the opposite create a plus 1 or 2 number mis match.