maybe this thread is mostly for newbies - but I figured "what the heck".
anyone can One-Turn-Score with a MA11 player, or one with MA10+sprint.
But even teams with players that start with MA9 or MA8 can OTS right out of the box.
Key:
Yellow Players are opponents. White are yours. C is your catcher. Players with a green dot will act on the next picture. Dark green players have finished their action.
Set up like this:
Note that the bottommost player is only needed if you only have MA8 - and that the topmost player doesn't actually do anything except make sure that the first block (not blitz) is a 3D.
You also need someone to get the ball to your catcher.

Declare a blitz with the player on the X spot. Run up to the B spot, and blitz the opposing player into the "hole" and follow up. This is only a 2D block, and you need to push back and not knock over.

Throw the (hopefully 3D) block, push back, don't knock down, follow up.

Throw the (hopefully 3D) block, push back, and knock down if your catcher has MA9. Then get him the ball and run in that TD.
If your Catcher only has MA8 then push back and don't knock down - but follow up. And proceed to the next picture.

Take Move actions with the 2 players from the M spots, and Move them into position as shown.

Throw one last (hopefully 3D) block, push back (& knock over if possible) - get the ball to your catcher and score.

Note that if the defense puts 3 players next to each other on the line, then this is still possible. Just place your player in the same relative position to the Victim and you should be fine.
Have fun

Martin