Human Salvation

HVCR - High Velocity Coil Rifle
HVCR indicates a coil rifle. Coil rifles use a line of 'carriages' as they're generally referred to as. A single ferrous shell is pulled through a barrel segment of equal length to the designated calibre, tripping a sensor on the front end of the magnetic coil the barrel segment is composed of. The second segment is then triggered, accelerating the projectile into the next segment, and so on. This allows for a very consistent, very high velocity, modular method of firing. A single HVCR can be anywhere from three segments to ten, depending on the purpose of the rifle. They're general-purpose mechanisms which due to their function tend to be single fire. While the technology is widely used, HVCRs are more common to longer range marksmen or EVA personnel.

EM - Electromagnetic
Alternative single-fire options to HVCR, EM use a single electromagnet pulse. The magnet is much stronger than the individual segments of an HVCR, but are positioned purely in the stock of the weapon. They provide a single, split-second burst which launches the projectile forward out of the barrel. This is useful for shotguns, or CQBCs due to their ability to fire a set of packed projectiles rather than a single shell.

HVC(A)R - High Velocity Coil (Assisted) Rifle
These are popular in sniper rifles. They are primarily HVCRs, but are designed to accompany shells that react with pressure to trigger secondary propulsion, burning a dense but powerful solid fuel. An EM-type assist is also used to trigger the initial push into the coil system. Shots fired from these rifles tend to fly straighter thanks to the design of the bullet, and the additional propulsion from escaping the barrel. HVC(A)Rs are almost entirely for the purpose of being used in long-range stealth weapons. The bullets have been nicknamed "Screamers" due to the noise their solid fuel cells make just before hitting their mark.

Marksman Rifle
Marksman rifles are a good place for HVCRs. These rifles hold the precision of most sniper rifles at more relevant distances while trading the power for stability in rapid bursts. They tend to be higher calibre HVCRs, and are best equipped with AP rounds.

Combat Rifles
These have shifted from their original traditional classifications. They tend to be fitted to fire single-fire, but can be adjusted to a burst-fire setting. They're often a more modifiable HVCR designed for the addition of utilities such as underbarrel platforms and tactical packages.

CQBC
Close Quarter Battle Cannons. As ridiculous as their tag sounds, CQBCs are actually a common choice in boarding ops. They are almost always EM, and fire packed bundles of needle-like projectiles. Upon leaving the barrel, they will steadily spread in a predictable pattern of one shot in the centre, with the others surrounding the outside. The larger the number of shots, the less of an impact each projectile will have, as they are individually smaller and have less mass. CQBCs are incredibly useful for clearing hallways of the unarmoured crew and are very effective at disabling response teams. These CQBCs can also be fitted to have a second barrel, and run on a double-magazine configuration, two double the number of shots being fired, and create a fuller cluster of shots without dropping calibre.