I served 2 x 3 month detachments in Berlin in the early 60s not with the Berlin Brigade directly but flying in our Scout Helicopters along the Border wall and the Border Fence during the day and being the detachments driver/radio op I would drive the crew in the evening to the US Army Base at Templehof airfield where we transferred all the (For the Time) hi tech infra red and other sensors into a Huey,
I would assume the role of crew chief which consisted of me sliding the rear doors open or closed and when requested lighting a cigarette for our American pilot and passing it to him

We were not allowed to smoke in Our Aircraft and every time I lit up the Captains Marlboro I got a look from my O/C who did not approve
Absolutely NOT allowed to carry a personal camera while on duty. Courts Martial offence if caught,
I did miss out one detail of the Cents markings in the centre of the side track armour plate was a large 5 pointed star in white on both sides this was a common idenifier on American, French and British Armour in Berlin at this time.