Fireteam Wedge
The wedge formation is a very versatile one that is easy to establish and control. It allows for good all-around observation and security, and can be used in the majority of situations encountered. Fire can be placed in any direction in good quantity, and a shift in formation upon contact is easy to accomplish to suit where the contact came from.
If contacted from the front, the wedge allows easy transfer into a forward facing line formation. If attacked from the sides, at least one buddy team is able to turn and lay fire, whilst the other outmaneuvers around them to support.
The Fireteam leader will usually take the furthest forward position, with his buddy team to his left, and the second buddy team to his right. The Fireteam order may be adjusted based on needs, such as putting the Automatic Rifleman to the front, and the medic to the rear, but should almost always consist of one buddy team on each side.