I worked as part of the field phase of this course as a Troop Sgt, during a Mercury Storm. If you're lucky enough to be in a Storm (luck is in the eye of the beholder), you'll be a Troop Commander for a group of QL5 Cpls learning to be detachment commanders, and QL3 Ptes learning to be detachment members. During my exercise, the assessment period for the officers was 13 hours. Enough time for a recce, tactical movement to detachment site, and tactical redeployment to the main camp. Throw in an attack or other significant act while you're at the site, and voila, a Sig O.