Kara was on the same wavelength as John. She didn't appreciate these guys walking in and making decisions for everyone else. She also didn't like the idea of splitting off into a team with a person she didn't know. She'd rather have someone watching her back that she trusted, or no one at all.
As the boys decided to go around the circle and play a rousing game of pin the rank on the officer, she felt herself getting annoyed. Finally, she said, "Does rank really even matter at this point?" She pointed at Sheppard, "You're from a different timeline, a different Earth, whatever." She then looked at three new guys, "We don't even know where you're from. How can we compare ranks? We don't even know how the ranks match up when they're compared to each other."
Okay, so she was constantly bucking the system anyway; it didn't matter what planet she was on---just as Colonel Tigh. That thought earned a wry smile from her. But still, she had a point and she knew it.
"We figure out the best course of action and we take it; end of story."