As it looked interesting, Marcus tried the field bread recipe that's found on the Joy of Field Rations Blog. Here you see the results. It came out very well, and it's good tasting bread.
I make soda bread from time to time in a Dutch oven, a type of bread that's sometimes called "Sheepherders Bread" as sheepherders make it (or at least used to) by preparing the recipe and then putting it in coals over night. Soda bread, of course, doesn't use any yeast, and I've never had the slightest bit of luck cooking with yeast, outside of a bread maker. It wouldn't really have occurred to me that anyone would attempt to bake yeast bread out in the boonies, but following the recipe, he did something I've never been able to, which is to make some very tasty yeast bread. This recipe, if you follow the instructions and cooking method found on the Joy of Field Rations blog, would be very suited to a similar cooking method, as you could leave the mess kid tins in the coals overnight, although given that they are Aluminum, a person would have be quite careful about that.