ez10^6
Leaving side for the moment the quesion of becoming a TP, you should disregard Shawn's assertion that:
"You don't have to kill people just because you are in the military"
Yes you do.
In the British Armed Forces, you are a (potential) killer either directly or indirectly. The other members of the team of which you are a pivotal member will not expect you to be a conditional participant. It's all or nothing. You'll be a killer or a supporter of killers. Perhaps you'll be a refueller, a tactical helicopter pilot, a battlefield support pilot or a medevac pilot extracting the wounded so that they may return to the offensive operations as quickly as possible. Whatever the role, you're a member of a killing machine
If, on the other hand, you want to be an academic, that's fine. But don't expect that there is any organisation that is going to pay the enormous sums of money that it takes to train a pilot, give him the years of experience that it takes to give him the basic qualities of a TP, and then train him to become a TP, without a dedicated commitment to that organisation.
If you've £10,000,000 to £15,000,000, you might pay for it yourself.
I make no apology for being blunt; that's the way it is.