Introduced in 2670 to replace the older M250 A/PDWS, the M252 was more powerful, smaller, and longer ranged than its predecessor. It benefited from the new DX52 Particle Cannon, which was more compact and powerful than previous models, so much so that it was used in ground vehicles. It was used as a powerful starfighter and small warship defence weapon, with relatively long range.
The system was used for defending points and areas against attack from starfighters, missiles and some small warships. They were used as short, medium and long range defensive weapons, able to destroy all fighters and many smaller warships with a single blast. While more widely mounted on warships, often they were used as ground defensive turrets against air attack, being deployable by HURRICANE Tactical Delivery Pod. However, as their main weapon was the DX52 Particle Cannon, used as an anti-armour weapon on many tanks and armoured vehicles, the M252 was capable of powerful ground destruction with its triple bank of these weapons. While many of even the heaviest armoured vehicles could be destroyed by even one blast, the three guns of the M252 could take down multiple targets and even some low-flying warships. The weapon was often used in conjunction with the smaller M253 Area/Point Defence Weapon System.
The system was set up as three DX52 Particle Cannons mounted on an armoured, lightweight turret. The turret was mounted on a fast-tracking base, enabling fast target acquisition and engagement. The three guns could fire alternately for a higher rate of fire, or in unison for more power. The turret contained the fire control centre, which was used for when the turret was not mounted onto a warship. When it was, the weapon was fired from remotely from inside the warship, and the turret was fully retractable into the ship's hull to protect it when not in use. The turret contained a compact but powerful sensor package, which worked in tandem with the ship's central targeting and sensor systems. The sensors were quite localised, having a range of 200,000km. The weapon could rely on these sensors even if the ship's ones were taken out, which was a rare occurrence. The whole net of sensors provided a full field of detection around the ship, aiding considerably in short range target acquisition. The turret house was protected by several layers of ACE Armour, which was molecularly compressed using various advanced techniques. The weapon's power from a simultaneous blast was 7,500 terajoules, which was relatively localised and effective at taking out targets with precision.
|Weaponry of The Royal Allegiance during the Swarm War|
|Infantry Heavy Weapons|
|Light Vehicle Weapons|
|Heavy Vehicle Weapons|
|Rockets and Missiles|
| Starship Weapons |
M421 General Purpose Cannon | M119 Heavy Naval Cannon | M125 Missile Launcher | M252 Area/Point Defence Weapon System M253 Area/Point Defence Weapon System | MD12 Particle Cannon | MG9 Heavy Particle Cannon | DDP-278 Linear Particle Cannon
|Technology of The Royal Allegiance during the Swarm War|
| Weaponry Technology |
Nuclear Weaponry | Particle Cannon | Overhead Weapon System | Freebore Pneumatic Effect Cannon | Electrothermal Acceleration | IRONHAMMER Weapon Mount | M252 Area/Point Defence Weapon System | M253 Area/Point Defence Weapon System | GATEKEEPER Device
| Shielding Technology |
Type I Protective Energy Barrier | Type II Protective Energy Barrier | Type III Protective Energy Barrier | Type IV Protective Energy Barrier | Type V Protective Energy Barrier | Type VI Protective Energy Barrier
|Sensor and Navigation Technology|
|Astroengineering and Installations|
|Technology related Projects|