More correctly know as the Bedford MK, the 4 tonner is used in many roles although mostly as a troop shaker. Specifically designed to make a 5 mile drive feel like a 15 mile forced march.
Any kind of creature comforts are noticeable by their absence, and there is nothing more dreadful an experience than waking up (usually freezing) from a deep, motion-unduced sleep and realising you're in the back of one of these fuckers, you've got a Kit-Kat Arse - and you're heading for Wales.
It's also raining.
... and it's January.