Also it has weapon modifications including serrated blade and electrified... but the axe won't visually change, only in damage. There are visual electricity if electrified though.

To install simply activate the esp using any mod manager(after placing the esp in the Data folder)
Then when ingame use console:
"help handed 0" (Look for the id next to one handed axe)
then
"player.additem id" (id being the one you just found)