Complex sentence: Another source states that two prototypes were delivered: one of these was transported to Tunisia, where it was tested under actual combat conditions, remaining there after the surrender of the 1st Italian Army and the 5th Panzer Army in May 1943.
Split into simpler sentences: Another source states that two prototypes were delivered: one of these was transported to Tunisia, where he was tested under actual combat conditions. He stood on African soil after the surrender of the 1st Italian Army and the 5th Panzer Army in May 1943.