That's interesting, well considering this guide was wrote about what now, 2,5 years? It's possible that an update changed something.
Oh, yeah I think making your new formation, as in the 400 man one, as m10 should work. Try it but please say here if it works or not.
What do you mean by m#?
Unless they changed something I don't know how to help you. This is the method I used and even made a 1000 man formation.
If you just...
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