But it's not bollox that the numbers of serving pers who go through are less than the number of civvies who go through.
At most you're putting yourself in for, what, 25-30% of the slots available, rather than the civvy going in for the 70-75%.
You've got a chance, yeah, but not a particularly big one.
Plus there's the danger of going in with the hope of doing that, failing, and then being 'stuck' in a trade you never wanted.