Thread:Gamercat123/@comment-24659969-20170314005737

Before adding new category. Please consult first to the higher-ups unless the page is marked with stub or still new.

Reason why I undoed your edit: If you added that category "zombie enemies" to the enemy units parent category page, then all other enemies category will have to follow suit. This however will cause sub-category looping since the zombie/metal/black/red enemies category already under subcategory of enemy units. 