They're both fine! Eren just clearly has way more experience with one of those, so they're concerned he might not ask for help if he needs it!

Indeed living together must not be doing any favors for either of theirs communication skills, but Levi will happily ignore that fact for now. He was absolutely communicating right now, wasn't he?

He hears the satisfying crack of the enemy mast main sail pole, which then falls on another one bringing them both down. The ghosts appear to be in disarray, which is just as good, because it means they don't have to worry about a counterattack just yet.

Which means they should try and use this opportunity to sink it.

"Get the heaviest one you can find," he shouts over the noise, "and aim right below the waterline!"

If they can just punch a hole anywhere in the hull below the surface, the fight should be won, right?