One of 'em, anyway.
Pro tip: google instructions on how to use bias tape, and then learn to use it. That's what hivemind has on the edges of his tabard. It makes the finished edges of the tabard pretty, and eliminates the noob-headache of trying to hem a neck-hole. (everyone seems to try to hem the neck-hole, and it simply cannot be done and look good. You must use bias binding or a facing.....for which there are instructions in the how-to section of the dag website.)
I think, though, that if your unit all has good garb, you wouldn't want a very wide tabard on everyone. And the technique Kevät used on the Apollyon tabards (2 hemmed rectangles attached together by 2 hemmed straps) might be perfectly adequate for you. And fast. With no reason to need binding.