Four offensive gamers ought to line up on the line of scrimmage. 3 defensive gamers needs to be down linemen (in A 3 of 4-place stance). One linebacker could blitz on either side of the middle. Defensive linemen will have to line up no broader than shoulder to shoulder ("shading") https://indoor-football30863.blogocial.com/indicators-on-indoor-football-you-should-know-65892086