Basically award for assists. If your scout or your ship (in the event of a sub scouting etc.) sees a ship and the ship dies while within your sight range you get an exp bonus.
A bonus for simply flying a scout is pointless as it encourages bad gameplay.
Could also have savior awards for killing an enemy shooting at a bb that is orange or red.
Also some kind of award for blinding the enemy (shooting down the last plane over an area).