Punt Returner Protection to Catch/Field

[BoBo]

Team B punting to Team A

B14 punts the ball but it is low and short.

Ball land about 8 short of A22 who is running forward to field the punt.

Ball hits the ground 5 yards shot of A22 and takes two low hopes then bounces high and hits A22 in the chest where he muffs the ball.

B44 recovers the ball.

B44 the gunner on the kicking has run downfield and closing in on A22 as the ball reaches A22 -

1) hits A22 before the ball hits A22 in a blocking techniques style- result of play?

2) hits A22 after the ball hits A22 in a blocking techinique- result of play?

3) hits A22 before the ball hits A22 in a tackle (arms wrapped) - result of play?

4) hits A22 after the ball hits A22 in a tackle (arms wrapped)- result of play?

make sure state if fed or ncaa or is there is a difference between the two please