This video has an overview of squad movement formations and techniques.
Formations are dependent on METT-TC (Mission, Enemy, Time, Troops, Terrain, Civilian Considerations).
Squad File – good for navigating harsh terrain or weather. Easy to control, poor to maneuver.
Squad Line – Limited manuevability, firepower concentrated on frontal target. Poor flank and rear security
Squad Column – compromise between file and line. Flexible and maneuverable. Best control for the Squad Leader. Best all around security.
METT-TC also applies to squad movement techniques
Traveling – Enemy contact unlikely – 20 meters between fire teams – good control and fast
Traveling Overwatch – Enemy contact possible – 50 meters between fire teams – flexibility to maneuver.
Bounding Overwatch – Enemy contact expected – good firepower, but slow.
Successive – team bounds parallel
Alternative – teams moves beyond the overwatch team