Hallways can be found in the vast majority of residential and commercial buildings. Hallways, by nature, are danger areas. When moving through a hallway, your first objective should be to get out of the hallway as soon as possible. Hallways frequently have multiple doors all along their length, offering many potential openings from which adversaries might emerge. Hallways also frequently have little furniture that can be used for cover and concealment. Finally, the shape of the hallway makes it easy for an adversary at either end to spray a large number of bullets down the hallway that will most likely hit anyone standing exposed. For all these reasons, hallways are danger areas and you should try to spend as little time as possible in the hallway.
Most of the following techniques focus on the most deliberate and thorough methods for hallway clearing. However, keep in mind that once you understand and master these techniques, there may be situations when you will want to simplify or modify the techniques in the interest of speed. Remember that hallways are danger areas and it is best to spend as little time in the hallway as possible. This might mean not conducting a full sweep when standing in a hallway but rather moving directly into the room and conducting a shallow or deep entry. In other cases, your best course of action might be just to run down the hallway as quickly as you can and try to find a covered and concealed position before addressing the threat. There are no fixed solutions. The key point is to avoid being exposed in the hallway, improvising as necessary to minimize risk.
Because you are alone, it is also critical to provide your own rear security. To do this, simply look over your shoulder frequently and watch out for possible threats coming from any direction. However, never walk backwards since walking backwards makes it very easy to trip and fall down, especially in the dark. Unlike team operations when your eyes and weapon are usually pointing in the same direction, for single-person operations it is necessary to keep your “head on a swivel,” constantly looking around to identify danger areas and potential threats.