Complex sentence: The 6th Airlanding Brigade headquarters, 1st Battalion, Royal Ulster Rifles and the 6th Airborne Armoured Reconnaissance Regiment landed at LZN, the latter equipped with the Tetrarch light tank--the first time that any tank had been flown into battle by air.
Split into simpler sentences: The 6th Airlanding Brigade headquarters, 1st Battalion, Royal Ulster Rifles and the 6th Airborne Armoured Reconnaissance Regiment landed on LZN. The armoured reconnaissance regiment was equipped with the Tetrarch light tank and this was the first time that any tank had been flown into battle by air.