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40px-Terminal.png This article, Advanced Combat Engagement System, was written by Ajax 013. Please do not edit this fiction without the writer's permission.

The Advanced Combat Engagement System (ACES) is the United Nations Space Command's new helmet for selected Marine and Army Aviators.


The ACES Helmet came out of a project initiated in 2578 to improve the combat effectiveness of Marine and Army pilots operating in close support operations. The helmet itself is a heavily modified Combat Helmet from a M4A2 Armour unit, allowing maximum cross service sharing of components. The ACES employs Holographic Heads Up Display projected directly into the helmet's visor, allowing the user to view both tactical information, remote cameras and his normal vision. It can also slave gun turrets using the Optical Head Positioning System to track the operator's movements, combined with an Iris Tracker to track the direction of their eyes. The helmet is also fitted with a Panoramic Visor Night Vision System. The PVNVS uses an active liquid crystal display to illuminate the Visor, giving the user a wide night vision ability when light conditions are too low for normal vision. The visor is polarised as well, which protects the user's eyes. It is capable of projecting TV, night vision and Infra-red imagery for vehicle sources or displaying infantry, vehicle UAV, satellite or RADAR inputs. The helmet is sealed and is provided with the option for oxygen supply or 'open taps' normal breathing. It features a boom microphone which is high quality and capable of filtering out background noise, noise free interruption protected audio systems and a high power, 'dazzle' encrypted, anti-jam wireless links.

The ACES helmet is issued to crews of atmospheric transport craft, such as Dropships, Hornets, Buzzard and Sparrowhawk gunships. It is often issued in conjunction with standard M4A2 Body Armour, with which it is fully compatible and a M37 Pressure Suit. It can be used standalone or hooked up to a standard V-3B1 rebreather kit, which is operable for up to six hours using its own independent supply, and much longer times when hooked up to the craft's own life support system.


  • Panoramic Visor Night Vision System
  • Holographic Heads Up Display
  • Optical Head Positioning System
  • Iris Tracking
  • Three-way sight system (Optical, Thermal, and Night Vision)
Equipment of the UNSC

Armour Systems

M4A2 Body Armour | M6B SOBA | M7 OGRe | M19 HazOp Armour | M26 Explosive Ordnance Disposal Armour | MJOLNIR Mk. VII | SPI Mk. III | M37 Pressure Suit | M11 Stealth Suit | Advanced Combat Engagement System | ARES | Infantry Shield Grading | Infantry Body Armour | Nanotech Polymers | Bio-Tech Force Enhancement | AEGIS | AURA Module

Camouflage Technology

Active Camouflage field | Camouflage Cloak Mark II | DU-35 Optical Camouflage | Active camo Tech | ECM Technology | 2606 Thermal Optical Camouflage

Warship Technology

Capital Ship Shield Grading | Shaw-Fujikawa Model 52 | Plasma Fusion Drive | Firestorm CIWS | Windstorm CIWS | Thunderstorm CIWS | Decoy Launcher | AN/SLQ-1011 PAVE FAITH | Slipspace Scrambler Installation | Ship Armour Plating | Ship Boring Umbilical Laser | High Orbit Precision Entry | Starcraft Weaponry (Necros)

Spacecraft Technology

Starcraft Shield Grading | Spacecraft armour | DECEPTION | Area Defence and Interception System | X-13 Series | SUBTERFUGE


TERRA Ion Satellite | LUNA Laser Satellite | SOL Laser Satellite | COMET Directed EMP Satellite | METEOR Kinetic Bombardment Weapon | ASTEROID Kinetic Bombardment Weapon | HELIOS Satellite

Aircraft Technology

BELLIGERENT | Gunpod Technology | Hardpoint Systems | X-13 Series | SUBTERFUGE

Ground Vehicle Technology

M980 WAO/AM DW | CARAPACE DAPS | Armour technology | ADIS System | REBOUND | NOCTURNAL | BLINDER | Artillery Fire Control System | PALADIN Weapon Station | NEMESIS | AN/VLQ-1010 PAVE HOPE

Stationary Weapons

Mk, 2588 Trebuchet MAC | M388B Hecatoncheires ADS | M389A Briareos ADS | M8A2 Wolf Spider ADS | Longbow Missile silo

Mobile Equipment/Weapons

Shortbow Missile Trailer | MOLE

Infantry Equipment

Ghost | Defuser | DV-4 Energy Shield | DV-5 Energy Shield | SL-4 Beacon | Misriah Rails | Radio Pack | Communication Pack | Battle Dress Utilities | Battle Equipment Utilities | AC4 Helmet Mounted Display | AC5 Heads Up Display | M-1126 Explosives Installation Tool | ABC Scrambler | Electronic Engagement System | Cybernetic Attack System | PAVE ROOK Sensor | SPHINX System | G-Pack | M35 Beacon

Mobile Equipment

B-68 Command Post | Type-D Resupply Canister

Medical Technology

Elixia | Biofoam | Defibrillator | Adrenal Booster | MethAmp | Reflex Enhancer | K-Boost

Other Technology

War Net | Artificial Intelligence (Necros) | LAIRD | RATS | Liquid State Electronics | EXCALIBUR | Pyrosene-VI