Give them the shortest covered arc. Note that this means that they will ignore enemy units or fire from outside that arc (unless that got changed again in an update).
My SOP is to have scouts use a combination of QUICK and HUNT (depending on how close they are to expected enemy) with a HIDE command and another unit close enuff to see what happens to the two-man scout unit. The HIDE command will help the scout to survive if it runs into LOS of an enemy unit that can fire at it. Hiding is often enuff to have the enemy unit lose contact. (Otherwise in CM2 being a scout is usually suicidal.)
