Airships and Submersibles
This is a strange feature. I get why it was done the way it was, but I don't think it works as intended. It was done so that FCs would have something to do as a team. All well and good- that's a very great goal, but I've only seen it used by one or two people. Either the FC leader has sole access to it and no one else gets to even help, or an officer gets tasked and he does it all.
I joined a small FC and handled the airships and subs because they were not being done at all and the moment I was through sinking millions of gil and a lot of hours gathering, crafting, and making deals with other FCs to get the materials for unlocking more components for faster upgrades, I was booted out of the FC and ghosted by the leader.
It just seems to me that considering how profitable this system is, it should be something available to all players, not just FC leaders. I myself just made my own FC and I'm going to have sole use of the Airships and Subs. I've worked too hard on it in the past and I'm not going to risk again getting burned for my efforts. I'm going to get to the end game and rake in all of the profits.
And this is why I'm making this post- with as profitable as this system is (in WoW, we called them "table missions"), more and more people are just going to make their own FCs and buy up houses just for this system. That's not what the devs had in mind when they created these table missions, but it's certainly what's happened.