Mobility kill

A Mobility Kill (or M-kill) in armored warfare is a weapon or vehicle that is immobilized, or the act of immobilizing such a target. Tanks and other armored fighting vehicles can be immobilized by damage to their engines, tracks, or running gear. Because of the mobile nature of modern warfare, such a vehicle is often effectively useless on the battlefield, but it may be salvaged, or repaired and brought back into action quickly.

Battlefield 4
Mobility Kills (and Mobility Hits) were introduced in Battlefield 4. They may also be referred to as Critical Damage or Critical Hit.

Overview
While the concept is somewhat similar to disabling vehicles, it differs in that while disabling catches a vehicle on fire, causing it to burn out, mobility hits impede the functionality of the vehicle. All vehicles with a HUD (all vehicles except for jeeps, the Quad Bike, PWC, and Dirt Bike) will alert the driver (and possibly gunner) to mobility damage.

Various explosives can cause mobility damage, some more than others. Although the blast damage of the M2 SLAM is relatively low, it consistently causes considerable mobility damage. The MBT-LAW cannot inflict mobility damage against heavy vehicles, although most rocket launchers can. Laser Designation can help to inflict critical damage.

Some specializations for vehicles can counteract the effects. Maintenance makes recovery faster, Gyro Stabilizer helps maintain control, while Reactive Armor and Smokescreen protect against loss of mobility.

There are various types of mobility hits and kills:

Mobility Hit

 * Turret:The gun turret of a Tank, IFV or Anti-Air vehicle is struck, causing it to turn very slowly, and causing static on the occupants' camera view.


 * Treads/Wheels/Propeller:The propulsion and steering of a vehicle is struck, causing it to move more slowly and with less control. Mobility is not completely lost.


 * Rotor:The rotor systems of a helicopter are struck, causing it to lose some power and become difficult to control. This may lead to a low-flying helicopter crashing into an obstacle, or overturning. The Gyro Stabilizer helps to alleviate this effect.


 * Wings:The wings of a jet are struck, causing loss of steering and altitude control.

Mobility Kill
The mobility of a vehicle is completely disabled (hence mobility-killed), making it impossible for the driver to substantially move the vehicle. On heavy vehicles, this is normally achieved by hitting the treads/wheels or the back end with considerable damage.

If an armored vehicle or car is mobility-killed, it is impossible to move at any speed. The vehicle's display will alert "CRITICAL DAMAGE, LOW POWER". The turret will generally still be operable. If further substantial damage is not taken, the vehicle will eventually recover, progress being indicated on its display screen. An Engineer may repair the vehicle to recover it faster.