This one has been known to drop without goals being kicked (Out on the Full has been known to trigger it). The best way to do it is in your forward line, seeing as you’ll be able to do directly for goal. Using a second controller that has no one using it will also help.
You need to keep the pressure on in your forward 50. To do this keep tackling opponants by holding down . Getting the free kicks is the hard part, but if you are having trouble with it you can make the qtrs 20 mins. This achievement will drop as soon as you've completed it.
This achievement is also glitched. Myself and others have had the achievement drop even if a goal isn't scored. I myself had it dropped when I kicked it out of bounds on the full.