Also by default, enemies use a single static battler image for both the side-view and front view-battle systems. By default, this format of animation sheet is only used in combat for actors if you use the side-view battle system in your project. The normal 12 image walking animation sheet you reference is the basic character animation sheet used on maps, while the image you pasted above is a side-view actor battler sheet, with all the different elements labeled for reference. Just to provide a little more detail in case it might help.