You actually ran out of torpedos a while ago, you're just kind of always in this submarine.
You decide to instead get out of the submarine and check this thing out, it looks weird. There's some kind of huge antenna and what appears to be a bunch of screens all over it?
You have no idea what this thing is supposed to be, but all of the sudden you have a strong urge to just hit it.
Like, really hard.
Not enough to break it, but you know. ;)