Hallways are among the easiest features of enclosed spaces to traverse, especially if movement is from an area that is already clear. In a case like this, the only threats are ahead, an the rear is safe. The team would travel two abreast with weapons pointed ahead. Never pass a cross-hall or a T-intersection without stopping beforehand. A two-man team reaching a T-intersection would stop with one man at the corner and the other back and to the side. They would then begin to rotate outwards so that they gain a view of the hallway in such a way that both guns can sight down the hallway at the same time.

Openrooms  Large, open rooms can provide the greatest technical challenges, since it is easy for threats to maintain a position of surprise until it is too late. The best practice is to keep complete coverage on at least one side by moving along a wall with the weapon pointed towards the centre of the room, scanning while moving. Teams must not move through opposing walls of an open room simultaneously: this puts friendly teams within one another's arc of fire, creating great danger of fratricide. The best option is to use a snake formation with the entire tam moving quickly along the wall that leads most directly to the exit point. To avoid moving across dead space, the team will have to buttonhook to enter the next doorway rather that using the cross manoeuvre (see below), which would expose the team too much.