stargunner's idea seem a bit too big for a minicamp...i'll post my own idea:
hoth battle
rebel side
as the imperial fleet approach the planet, fighters wings are dispatched to slow down their attack and gain time for evacuation.
you start close to the planet, a huge fleet is in front of you, in a wide formation, little far away (around 20 km), you are at one of the extremities of the empire formation, a SSD is in the middle of this formation (so pretty far to you), the closest ships are an interdictor and a couple of stardestroyers.
In the first mission you have to hunt down as much transports as you can, in order to reduce the strenght of the ground attack, objectives of first mission are: kill 25% of transports, kill 50% of transports, kill 75% of transports, destroy/make flee away the Interdictor.
Depending by the number of transport killed, the next mission will be easyer or harder, if you fail destroying the interdictor you will have to destroy she in the second mission.
Destroying the interdictor will be obviously hard, since you will have to stop attacking transoprts to do so, and it will require an excellent strategy
In the second mission you will have to cover the evacuating transports, each will come with a little fighter escort, and there will be the ion shots from planet
you will have to destroy (if you didn't before) the interdictor or the transports will be not able to enter hyperspace
depending by the number of enemy transport killed in first mission, you will be able (if possible) to call in the evacuating transports for a longer time, there will be more time between transports, they will have bigger fighter escort, and the final rush (with all the transport coming in close to each other with a minimal escort) will start later and will be shorter.