Deficiencies noted during earlier inspections. The leader should make his instructions brief, simple, clear, and specific. An operation overlay is a tracing of graphic control measures on a map. It shows boundaries, unit positions, routes, objectives, and other control measures. It helps to clarify the operation order.
Platoons normally trace their overlays from the company operations map.
Squad leaders transfer control measures on to their maps as needed. The subordinate's need for higher unit graphics must be balanced against the risk of the enemy obtaining this information. The sketch shows the locations and positions of objectives, control measures, and key terrain in relation to each other. It is not necessarily drawn to scale. A terrain model is a three-dimensional scale model of the terrain.