[@The 42nd Gecko]

As far as I'm aware, Shizuka, Henry and [b]One[/b] Eos (sincee I never placed two of here there on my previous post) are fighting Mephilus are fighting somewhere above the main floor of the production line where Shizuka ambushed Mephilus.

And this is the only Eos that Artoria can be attacking since I won't have her have even more information that she shouldn't have, like the location of the control room where Eos-1 is (perhaps?). This is just me making sure that the posts have some consistence from now on since Artoria's knowing even more about the innards of KC-00032 would be too much.

However, she knows that Eos is fighting her Demon allies, so it makes sense for her to target that area. This is how I interpreted it.