http://www.romans-in-britain.org.uk/...dier_sword.htm
I stand quite corrected. You have the leg movement right, except that the legs are used to drive the scutum into the enemy's face, note the drive from the the right leg and the "punch" with the shield. The sword movement actually comes all from the shoulder, so I was on the right track, I just didn't consider using the shield that way.
Its a sort of one-two punch. :D.
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