So, I've been playing for a little while now, and while I'm still pretty green, I have noticed something about being a crew member on a ship.
It's always the same. Fun. REALLY, REALLY FUN...but it's always the same. Piloting has lots of variety, because the variance in the different ship hulls, how big they are, how fast they are, where their guns are mounted, and what those guns are, influences how you fly in a fundamental way.
But on the crew, you have your three roles: Main Engineer, Secondary Engineer/Gunner, Main Gunner, and no matter what ship you're on, those roles stay the same. More over, the experience of performing them stays essentially the same, too. So, while piloting a Squid is a really different experience from piloting a Spire, being an engineer on either of those ships is pretty much the same.
Now, like I said, doing those jobs is FUN. REALLY RUN. But there's no variety like there is for pilots. Every ship has the same set of vital components which need to be repaired in the same order of priority.
Now, as to what causes this, and what could be done to help increase variety among the crew roles, I don't really know. What I do know is that I don't seem to be the only one who's noticed this.
Someone in an earlier thread suggested ship-specific subsystems, which would be one way to add much more variety to crewing. My idea was to add ships that had bigger or smaller crews than the 4-man standard. Or perhaps instead just modify existing hulls. The squid could very much be crewed by 3 ppl and the galleon is more than large enough that a 5 man crew would still have its hands full. What if loading heavy guns with ammo required a bit more micro-management from the crew? That could be really fun, because the engineer and the gunner would have to work together to bring the weapon to bear.
Of course, I understand that implementing something like those ideas and balancing it would be really hard and that Muse already has its hands full with Adventure Mode (WHICH I AM SO LOOKING FORWARD TO), but I think that GOIO would gain a lot of replayability by offering more variety when it comes to playing an engineer or a gunner.