Ammunition

Armor-piercing Bullets (AP)
Designed to penetrate thick layers of hardened steel, armor-piercing bullets are the bread and butter of AutoArmor weaponry. Their shells are designed to withstand the shock of punching through armor plating. A softer ring of metal on the nose known as a penetrating cap lowers the initial shock of impact and prevents the shell from bouncing off in glancing shots.

Armor-piercing High-explosive Bullets (APHE)
Though they are potentially more destructive than traditional armor-piercing bullets, high-explosive bullets are also less reliable. Premature detonation of high-explosive bullets can cause serious damage to the weapon and leave it more vulnerable to enemy attacks. The high-explosives are loaded towards the base of the bullet and are set on a delay.

Incendiary Bullets
Better equipped for anti-personnel or 'scorched-earth' tactics than AutoArmor combat, incendiary bullets are less destructive than high-explosive bullets but are more likely to start fires. They are often used to ignite fuel tanks or pipelines, but can also be used to cause internal damage to electronic systems without penetrating the armor.

Supercavitating Bullets (SC)
Ammunition designed for underwater combat, supercavitating bullets use bubbles of gas or vapor to lead a bullet and reduce friction. Unlike traditional bullets, these can be used at relatively long distances underwater or even between targets on land and in the water. Anyone using SC bullets must take into account the refractive index of water; variations in temperature and composition make it especially difficult to aim accurately from extremely long ranges.

Tracer Bullets
Built with a small pyrotechnic charge at their base, tracers are designed to make the projectile trajectory visible to the naked eye. This allows the shooter to make aiming corrections without directly observing their impact. Tracers are often loaded into every fifth round of a machine gun belt, but may also be used in greater proportion to mark a target for others to fire upon.

High-explosive Shells (HE)
The most common type of shells, usually referred to as HE. These shells detonate at a high velocity, scattering sharp fragments of the case in all directions. In order to be considered "high-explosive", these shells must detonate at supersonic speeds. HE shells can be detonated on impact, by time in the air, or after penetrating a short distance into the ground. These are more effective against infantry units and lightly-armored vehicles and are ineffective against most AAs.

High-explosive Incendiary Shells (HEI)
A type of shell specifically designed to damage its target through its high-explosive charge and its incendiary effects. Unlike most high-explosive shells, HEIs are meant to engulf their opponents in flame and kill anyone inside manned vehicles. Some express distaste for this ammunition due to the intense suffering it causes enemy pilots, but modern HEI shells have worked around bans on this type of weaponry by using more advanced chemical compounds.