Superheavy Laser Weapons
Sometimes you just need a little more firepower. Sometimes you just need to hatefuck a few new holes in your enemy. The Imperium of Man in particular has taken a liking to these weapons: from the humble lasgun to the powerful lascannon. But it was not enough. Upsizing the weapons several times and attaching them to their Titans, the Adeptus Titanicus are the supreme masters of these weapons.
Neutron Laser Projector
The bigger and more powerful version of the regular Neutron Laser. The Neutron Laser Projector is a powerful and rare weapon used by the Imperium. Mounted on Valdor Tank Hunters and Cerberus Heavy Tank Destroyer's, it is a relic of the Dark Age of Technology. These little-understood and highly unstable weapons emit powerful blasts that outmatch any other Imperial weapon of its size. The projector fires a neutron beam capable of destroying even the densest material by explosive matter disruption, smashing apart the target's molecular structure and creating a massive electro-magnetic shock-pulse which can disable electronic systems while the penetrating radiation disrupts any biological matter, though this effect works only against vehicles which lack the thick shielding and protective mass of Super-Heavy Tanks.
While this makes the weapon perfect for tank-hunting, the neutron beam's unique nature means that if it fails to transfer its energy discharge entirely to the target vehicle, a dangerous feedback loop can cause damage to the weapon itself. The neutronic-coil arc-reactor which powers the weapon is also inherently unstable and, without the necessary reactor shielding, can be hazardous to operate.
In times of the Great Crusade and Horus Heresy this weapon was also installed on Sicaran Venators tanks though even then its systems and principles were barely understood by Tech-adepts.
Atrapos Lascutter
The Cerastus Knight-Atrapos was designed with the singular purpose of destroying Heretek engines and xenos war machines whose very nature and existence was considered a blasphemy to the Omnissiah.
The Atrapos Lascutter is a type of Laser Weapon used by Imperial Knights. A variant of the much smaller Lascutter, the Atrapos lascutter sees duty as both a ranged and close combat weapon. It is most typically mounted on the Knight Atrapos.
The Atrapos Lascutter takes the function of a Lascutter to the extreme, resulting in a weapon able to cut through the hulls of enemy tanks with ease. The Atrapos can use its Lascutter to destroy enemy Knights and can even pose a threat to Battle Titans at close range. The Atrapos Lascutter can be used as a melee weapon, or can fire a longer-ranged directed energy attack, though the range remains quite limited.
Lightning Cannon
The Lightning Cannon is an enlarged version of the Mechanicum Lightning Gun, which we should stress again, is NOT an actual Arc weapon. Requiring a vast energy core to draw from, the cannon fires a laser-guided electromagnetic beam that vaporizes flesh and armor with ease. It is most commonly mounted on the Krios Battle Tanks.
The Lightnign Cannon is also used primarily by the Questoris Knight Magaera but can also be found in use by Freeblade Knights. The Lightning Cannon is a Knight-sized variation of the Lightning Gun carried by the Thallaxii of the Adeptus Mechanicus' Ordo Reductor. The Lightning Cannon uses focused beams of electromagnetic energy to vaporize infantry and blast apart armor.
Magma Cannon
The Volcano Cannon's smaller brother, the Magma Cannon is a heavy Titan-killing weapon utilized on the Doomhammer Super Heavy Tanks of the Imperial Guard. The Doomhammer's Magma Cannon lacks the range and area of effect of its larger cousin, but it is still more than able to turn an enemy formation to dust and can even take on smaller Titans if needed.
At the same time however, the reduced number of capacitors needed to power the weapon allows the Doomhammer to transport infantry, thus giving the tank a more flexible battlefield role.
Hence, where a Shadowsword armed with the Volcano Cannon can easily operate as a lone Titan hunter, the Doomhammer must be supported by other elements of the Imperial Guard in order to bring a Titan down. Also, the Magma Cannon does not require the tank's engine to be stopped to fire, granting the Doomhammer the required mobility to bracket smaller targets and obliterate them
Turbo-Laser Destructor
Turbo-Lasers are known to be very destructive to the surrounding environment, capable of penetrating through the ground down to the bedrock and leaving behind long gouges of fused earth. In urban environments their scorching emissions have shivered tiles off roofs and shattered windows at their passing, and an entire block-row of buildings can be leveled in one sweep of these weapons. Against lesser foes turbo-lasers have been known to cause infantry to ignite and evaporate almost instantly. Even passing just a few meters overhead will sear the meat off the bone of exposed troopers. Turbo-lasers will also punch right through the armor of Battle Tanks, tearing them in two and disintegrating them with a single shot. Not even Baneblades are safe.
Single-Barrelled
A single massive cannon strapped to the back of a Thunderhawk, it can deal massive damage to unprepared targets. And prepared targets. The Turbo-Laser is a potent laser-based energy weapon that can come in the configuration on one, two or three barrels. The one on the Thunderhawk mounts the single-barrelled variant.
Double-Barrelled
Two Turbo-Lasers strapped together to form a single destructive weapon. Most commonly used by the Warhound Scout Titan. They are also sometimes fitted to the carapace hard-points of the larger Reaver and Warlord Battle Titan.TK
Laser Blaster (Triple Barrelled)
What's better than two Turbo-Lasers? Three of course! Fitted to the Reaver Battle Titan as do certain patterns of Warlord Titan, with the Mars-Alpha pattern Warlord commonly mounting a pair in carapace mounts. The Imperator-class Titan can also carry one or more Laser Blasters on its carapace hard-points. These babies can REALLY fuck your shit up.
Volcano Cannon
What's that? The Laser Blaster is not good enough for you? Then what about the massive penis extension that is the Volcano Cannon? So massive that it has to be fitted onto Reaver and greater class Titans, they can also be fitted onto the Shadowsword class Baneblade. Because big guns need to move fast too. Unfortunately on tanks its size means that there is no turret aiming: you point the tank where you want to shoot.
This long-ranged weapon is capable of slicing off the arm or leg of a Titan or killing an enemy war engine with a single shot, though even a Warhound Scout Titan with intact Void Shields can survive a direct hit. Its firepower is similarly stupendous against lesser targets, reducing a Razorback to nothing more than a blackened scorch mark and utterly vaporizing a thick hundred meter-tall iron gate as though it never existed.
It is also tainted with the Warp as the crystals needed for the weapon to fire, are taken from a mineral vein on the Mining World Cinderus XI. Created when Heretic Psykers were slaughtered and buried beneath the lava rivers on the planet, after a failed plot to kill the Planetary Governor, the crystals cause a loud crackling noise to be emitted by the Volcano Cannon when fired. This noise, which some claim are the final screams of the the dead Psykers, has been known to drive those who fight beside the weapon insane; though the tank or Titan crews themselves have never been reported to suffer from these ill effects. As a result units of infantry escorting vehicles and Titans using the Volcano Cannon are subject to periodic purges. Which is beyond stupid even for the Imperium.
Hellstorm Cannon
So massive it can only be fitted onto the Imperator Battle Titan, this weapon is more than able to lay waste to entire armies, laying down 8 7" pie plates PER SHOT. The Hellstorm Cannon is a multi-barreled weapon capable of firing in quick succession, giving its wielder unparalleled firepower against enemy Titans. The cannon is able to strip the Void Shields from a Warlord Battle Titan in one volley.
You might remember this puppy from seeing it in Dark Crusade in the Imperial Guard stronghold level, which if you go back to the world map you see it's creating a burn mark that can be seen from space.
Vengeance Cannon
A very rare weapon fitted only onto Imperator or Emperor titans, this weapon has extremely high range, and firepower more than capable of destroying enemy titans in a single shot. A step up of the Hellstorm Cannon (Yes, only in the Imperium does a six-barrelled laser cannon the size of a three story building be considered only as a step up), the Vengeance Cannon resemble two giant twin-linked Lascannons.
This gun is used to one host enemy Titans and deal a threat to even low orbiting Imperial ships.
Defence Laser
Defence Lasers are a common anti-voidship defensive weapons used by the Imperial Planetary Defense Forces. A gigantic laser weapon, it is a monstrous engine of destruction so large it can only be mounted on fixed platforms. They use vast amounts of power to fire, blacking out power grids for miles around with each volley. Designed for use against invading warships in orbit, they can drive away anything up to a Cruiser.
Average length of Defence Laser's main laser chamber - is over 15m (with an overall weight of many tons) and this weapon has little use against ground-based targets, where its practical range equaled nearly a mile at ground height.
Lance weapon
Tape it on to a navy boat fart a twelve second prayer and tell the deck swabbers to go back to where they came from, nearly a kilometer long and accurate to 3km when fired through the atmosphere.
The principle of such a weapon is an extremely high-powered energy beam; the efficiency of a Lance turret is increased by the incorporation of several smaller beam projectors into a single, focused beam. The resulting weapon is capable of incinerating straight through the armored hulls of other vessels as if they were irrelevant.
Made on the off chance you need to perform an exterminatus on a budget.