Non-Reg Single-Room Shallow Entry
Another key difference between team operations and single-person operations is that as a single-person, there are many cases when you will not want to penetrate too far into a room. You may want to get into the room quickly to avoid greater exposure in a hallway, but you will want to stay close to the door so you can escape the way you came should more adversaries come at you from adjacent rooms.
The shallow entry techniques (sometimes called “limited penetration” techniques) are designed to prevent you from becoming over-committed or trapped deep in a target room. In single-person operations, it is often better to stay closer to a door so you can quickly move through it to avoid threats coming from either direction. Don’t commit too far into the room and cut off your own route of escape. However, still observe the rule of keeping several meters between you and the door to avoid getting hit by indiscriminate fire.
If there is a lot of furniture and uncleared dead space in the room, the shallow entry can make you vulnerable since you have not gone deep enough to see if anyone is hiding behind the furniture. In this situation, you might want to penetrate deeper and clear the entire room using the deep entry technique described later on.
It is also advisable to go on and complete the deep entry if you plan on staying in the room for any length of time. In general, the shallow entry is most useful if you want to quickly enter and clear the room to momentarily get out of an exposed area or hallway. Once you are ready to keep moving, you will exit the room and move along to clear the next room.
The shallow entry techniques begin with the same sweep technique used for the clear without entry. If time is critical, you can perform any of the shallow entry techniques immediately without first conducting the sweep. However, eliminating the sweep greatly increases the level of risk during the clearing process.
The shallow entry techniques also call for a 180-degree kneeling pivot movement. If you have trouble conducting this movement it is possible to execute the shallow entry techniques without kneeling, though kneeling helps reduce your risk of getting shot by an adversary hiding in the corner of the room.