The words "Assault Posture" are missing from the beginning of the Tool Tip when passed over the red Posture button.
Only a newbie like me would notice I suppose

Kudos on a great 1st tutorial too. There are some minor typos and a couple of references to numbers don't match the action on the screen.
If you have the time to look over that it would be icing on the cake.
Cheers,
Adam.