The transit van screeches to a halt and I jump out followed by 11 other “foot soldiers”, fully clad in police riot gear with batons strapped to our belts.I am finding it hard to grip a paintball gun because my hands are shaking and my palms are sweaty.

And then I see them – the undead – tearing towards me, teeth bared and blood dripping off their chins. It is time to fight for my life..

read more BBC News – Why Zombie live experiences are proving big business.