Hold up a second before lynching me.

What I want to suggest is FC specific achievements that only affect your current FC, such as changing the colour of your FC tag e.g. "beat ifrit on any difficulty 100 times with member(s) of your free company" to unlock the ifrit red FC tag colour.

This would also be a nice way to organise events with your FC that have more than one benefit, "clear omega sigmascape(savage) with members of your free company" to unlock the Airforce sigil for your FC crest.

My other suggestion is adding an event room, similar to the FC workshop, i've been in so many FC event rooms built by players that are great but wouldn't it be nice to have a specific room for events and still have all of your house floors free to decorate?