In fairness to McSkull, the full page ad I saw in Flight earier in the year did clearly state that they intended to provide some ab initio training for sponsored pilots (ala Bristow I guess).
No idea of specifics, but usually you'd need A levels in Maths and Physics plus a demonstrable intrerest in aviation (possibly a PPL aeroplanes or RAF flying scholarship, or Air Cadet gliding; that sort of thing), plus passing the usual range of aptitude tests and interviews.
Before being shot down about the A levels; I agree they are not essential but they tend to act as a useful sifting tool when dealing with hundreds/thousands of hopefuls. Bond may have a different view.