"for scouting the fleet? hmmm would anyone fly them."
Sure. Perhaps if HTC made it so that if the scout (PBY) is used in combination with the mission planner that the volunteer pilot/copilot can click on the arena map on the location they spot the enemy fleet. Then the mission participants can see a "bullseye" of some sort where upon they can vector to strike it. If the fleet is damaged or sunk then that PBY/scout crew who placed the bullseye on the fleet get full share of the mission perk points when the mission is done. But they have to be alive and in close proximity to the fleet (within 25 miles) to get those. Not parked on the water, not off burning circles in the sky three grids away and not hanging in a chute after bailing from 30k

If they die the bullseye still stays where it was initially placed (does not track the fleet) untill the mission is over or someone in the mission moves it to bring it closer to the fleet in tracking it. But the have to be within 5 miles of the marker and within visual range of the fleet it's marking. And perhaps only allow one bullseye marker, per fleet, per grid. (If two fleets are in a grid then two bullseye markers can be placed but by seperate crews though. This will cut down on low life perk point potatos who fire off thier own missions in the planner and free load on others success. It's a rough idea but it could be appealing to a lot of people.
Also? Maybe allow it to be the only aircraft type that can resupply a damaged fleet? You know to go along with that new, more complex and realistic naval damage model we'll be getting in
two weeks 
Or? Points for picking up ditched pilots?
So right there are three ways a PBY could be made more fun to use in the MA than it probably would be.
Otherwise it will just be a noveltry. A fun one for sure. Much the same way a lot of people use C47's to scout for land attacks

Westy