All officers wishing to become Executive Officers on board a Royal Navy Submarine must take the 'Perisher'. It is one of the toughest command courses in the world.

Sky News followed some of these hopeful officers in a one-hour special programme.

I had 48-hours to complete the titles, audio, promo slates and all additional branding. It took nerves of steel and my first proper introduction to Cinema4D. Could I handle the pressure? Of course I could.