Complex sentence: In 1974 he became Commanding Officer of the 1st Battalion of the Scots Guards, and two years later Military Assistant (GSO1) to the Master-General of the Ordnance.
Split into simpler sentences: In 1974 he transferred to the Scots Guards in 1974 on appointment as Commanding Officer of the 1st Battalion of the Scots Guards. Two years later he became Military Assistant to the Master-General of the Ordnance.