Ensign Lowest commissioned officer in an infantry regiment, responsible for the colours. In the 17 th -19 th centuries, a member of the elite company of a line infantry regiment. Usually a private unless otherwise stated. Group Officer Equivalent to GRoup Captain in WRAF Guardsman Private, Guards Regt. Sergeant Acting sergeant.
Actual status depends on the unit.
Quartermaster Sergeant Staff Sergeant, Warrant Officer Class II Rifleman Private, Rifle Regt. Equivalent to Warrant Officer. Trooper Private in a cavalry regiment Trumpet major NCO in charge of the trumpeters in a regiment. Actual status depended on the unit. It is also possible to hold a higher rank in the army than in the regiment or Corps, often as a reward for good service.