15 - 3 a. Heavy Left or Right Formation (Figure 15-2). PROS: Provides firepower to front and flank. CONS: Requires a relatively long, wide landing area; presents difficulty in pre positioning loads; restricts suppressive fire by inboard gunners. Figure 15-2. HEAVY LEFT/ HEAVY RIGHT FORMATION b. Diamond Formation (Figure 15-3). PROS: Allows rapid deployment for all round security; requires a small landing area. CONS: Presents some difficulty in pre positioning loads; restricts suppressive fire by inboard gunners. Figure 15-3. DIAMOND FORMATION