That style 1-handed melee and dagger equip/unequip(Draw and Sheathing) animations is specifically for back sheath skeleton which changes the weapon node position to allow you to draw the weapon from your back side(XPMS or other custom skeleton.) Also, That 1-handed melee and dagger equip/unequip(Draw and Sheathing) animations Designed to use with "Dual Sheath Redux".