Most of CCG military cards must generally attack (or defend...) per quantity of 5 or multiple quantities of 5...
Some units are able to attack per quantity of 1 (usually special unit), all has been updated and corrected.
So now all units that are able to attack alone are clearely detailed on each card. It has been corrected as well in the Military sheet details.
Buzzy all the day on this small "details" case by case ^^