Well, the engines forces a certain degree of generalization of arms. Anyway, I'm under the impression the axes used for chopping wood *could* get pretty large - think them merry lumberjacks of old - and peasant levies/militias/guerillas/marauders/arrow fodder typically went to the field with whatever they already had at home. That's one reason why spears (useful for hunting and generally dealing with wild animals) and various axes (basic tools everyone had, and not all that rarely employed as a valid and traditional means of settling personal disputes) were so common.

That said, the fellow does seem to have nicked the Huscarle's "danish" axe. Maybe he got the guy drunk on vodka and swindled it off him...?