I think you may find it vastly easier to accomplish that goal using a different engine. FPSC is designed to make FPS games. Third person is great, but there are also the basic rules of the engine to take into account as well, such as gravity, basic physics, the scale of the map (not a great scale to work with for a space shooter, man)
I just suggest not attempting it in FPSC, grab another engine for it.
The one and only,
Only those who sow the seeds of their desires will reap their benefits later.
However, I have seeds of my own to tend to. I don't have time to be someone else's watering can.