Complex sentence: The Wombat was mounted on a small two wheeled carriage which was removable in order to be moved over obstacles and then locked to the carriage again, the weapon was normally carried in the rear of a specially adapted Land Rover (Portee).
Split into simpler sentences: The Wombat was mounted on a small two wheeled carriage, which was removable in order to be moved over obstacles and then locked to the carriage again. The weapon was normally carried in the rear of a specially adapted Land Rover (Portee).