What I like to look for on the map is several different approaches to my objective. Keep in mind that the avenue that you chose might be dictated by the time schedule set for the scenario. Know what the terrain types are in the game you are playing. This is very important. Purpose The immediate purpose of any defensive operation is to defeat an enemy attack.
Military forces defend until they gain sufficient strength to attack.
Additionally, defensive operations are undertaken to gain time, to hold key terrain, to preoccupy the enemy in one area so friendly forces can attack elsewhere, and to erode enemy resources at a rapid rate while reinforcing friendly operations. You must understand your scenarios briefing to conduct a successful defensive operation. You will most likely be placed by the game into your starting area, so you will want to study the briefing map very closely and determine if you want to stay in this area and defend in place. No matter what, you will want to move each one of your platoon members individually into a nice hull down firing position. This may be a bit time consuming, but it will save the lives of your platoon members when the hot lead starts to fly.