Does anyone know what animations the PK_Melee Anims V2 contain and why its only on certain characters?

It's not attached to any Jedi types only gunners, warrior types or base human/shek/hiver races which makes me think it should be on everyone? Much like some of the other animations files I've had to add to other races but I wanted to double check before going ahead and adding them.

I would be very grateful if someone could fill me in as I'm trying to patch mistakes i find with all three Kathun mods combined like fixing the wrong textures on the dark Jedi robes which make them look wet all the time.