I am toying the idea of having a campaign centered around the PCs forming a fighter pilot squadron. The campaign would be similar to Rogue Squadron in the Star Wars universe and would feature both space battles between ships and a few planetary encounters.
My problem however, is that there is only one pilot tree the players may use (assuming they aren't force sensitive). My question to you all, is how do I run such a campaign?
Should I make another tree or two, reduce starting and earned experience greatly for example...