The old Vault shuttle mission should be changed to a straight forward shuttle/fighter PvE or PvP (no ships and drop all the calibrate this and that). The objective can be related to the current Tholian threat and stopping them from taking the station. Additionally, a ground map should be developed for the interior of the station involving a joint Tholian-Tal Shiar threat.
More shuttle PvE or PvP can be made for SB24, DS9, Deferi, and New Romulus.
Shuttle PVP would be pretty imbalanced, when you have Fighter-type ships that have about the same hull and shields as other shuttles, but with a higher turn rate and the ability to equip cannons.
Plus, how many people actually know that you can equip starship stuff on shuttles? I've got purple Mk XI cannons and a turret on my Fighter, along with a full Mk XI Omega Force set. I wouldn't be surprised to see people show up in their Shuttle-only gear, and then get floored and wonder what was up.