The one badass moment was when the took out the enemy kataphract by ramming it with the battleship's bow, crippling it completely.

The girl finishing it off was overkill in my opinion, but it at least shows she intends to kill them regardless and may be a risk to the Princess.

As for the rest of the developments in this episode, you had to know they were coming. Their previous ship was all but dead (so some form of new transport was needed) and they've been hinting that the Princess will have to take an active role to even the scales for the last few episodes. They were running out of mechs at a pretty substantial rate as well, so the seized kataphract being used is also a given.

I did appreciate the effort they took to show how damn loud weapons of that size are, especially when directed toward a enclosed space.

The soundtrack is 50/50. The instrumental songs are quite good, but when it shifts to jpop inserts, they almost always feel out of place. It isn't Symphogear ffs.