A little off topic I know but related to WW2. I was looking on line through old photographs of Bebington, Birkenhead and spotted one with a line of soldiers think they called them Birkenhead Bantams and every soldier was under 5ft 3ins.Never heard that fact before anyone else?

The story of the Bantams, battalions of smaller men first formed in Birkenhead during the Great War, is quite well-known. Here's a book about them ...

https://www.amazon.co.uk/Cheshire-Bantam...ntam+battalions

I remember reading somewhere about Jack Haworth aka Albert Tatlock of Coronation Street fame, who was a serving bantam during the great war.

Were they used for special or different duties ?

No, they just did normal duties.