When you have levelled up a bit you get a choice of planes to take after each death until the tickets run out. On my PC one I have a few fighters including a spitfire and a hurricane, plus two bombers. The Bombers are great fun as you get to shit on the bastards below.|
Some of the Bombers have full crew too, such as the Lancaster, so the AI shoots at enemy fighters as you go on your run which is cool, you also get xp for any hits and kills off them.
The downside to the bombers is that there is a long time before reloading the bombs for drop which leaves you exposed, but you can time it really well with circling round for the next run.
I hope it translates on the ps4 as well as it plays on the PC, it's one of my favourite games. Plus there is land and naval to come too.
I hear you can link your account in the game from the PC one, which would be cool as I can keep my stuff.