Synopsis provided by Odeon Entertainment on their DVD case - "A gang of criminals acquire an old army truck and try to pass themselves off as military policemen. Their plan is to steal a £250,000 payroll intended for soldiers in the Middle East. Turpin (Stanley Baker) recruits Fenner (Tom Bell) and Swavek (Helmut Schmid) to make up a crack assault team. The three criminals plan their daring robbery with meticulous precision and timing and as dawn breaks, they head into the army camp for their date with destiny. As the duty guard raises the barrier Turpin knows there can be no turning back. His desperate gamble for riches will now be played out to its shattering climax..."
Who is the gang trying to impersonate?
Military policemen