Step 1

Disc in middle, force is forehand

Step 2

breakside mid (4) cuts to the middle and receive open pass other mids (5,6,7) moves more simultaneously to maintain spacing

Step 3

disc in middle, establishes 5 and 6 to be onstage, and does diamond

Step 4

6 doesn't get the disc and push to railway and 5 comes in to complete the diamond