Im not looking for negative votes just explaining the achievement and how I got it...
When the opposite team QB throws the ball you hit
switching to the closest defending CB or Safety and tap Y in order to set up the swat option...
Now I actually did this a few times even down to the point where the top of the screen would say user swat... as I was randomly play in MUT the ball bounced off of the WR head and I hit
my player then made an interception and that made the achievment pop...
In other words you can continue to play games and hit x in order to swat but it may just be a strike of luck to actually pop the achievement....