Various Heavy Weapons

AMS Ballista - Heavy crossbow
Class: Heavy Firearm
Damage: 4D8 + 4
Cost: 9,000
Range: Medium
Rate: 1
EMPS: Immune
Ammo: Heavy Crossbow Bolt Clip (Holds 6 bolts)
The AMS Ballista is a self-loading repeating heavy cross bow capable of firing 12 inch long projectiles with enough force to pierce heavy armour. Each bolt can be used to inject poisons, tracking bugs and in the hands of a trained user can pin targets to walls.
There is also a custom option to purchase an Ammo Converter for an extra 1000 credits. This will make the weapon able to take SMART clips as ammunition. Each clip will provide three normal heavy crossbow bolts.

Y&S Tesla 6000 - Heavy Tesla-class weapon
Class: Heavy Energy (Tesla) weapon (Kind of like this)
Damage: 8D10 Galvanic (special)
Cost: 20,000
Range: Close / Short (5m)
Rate: 1
EMPS: 10
Ammo: Energy clip (One per shot)

Tesla class weapons discharge intense high voltage bursts of electricity at multiple targets within a very short range. The weapon user and their team-mates must all wear grounded armour or they will be treated as targets for the weapon as well. When fired, the Tesla 6000 will hit every target within range and spread its damage dice out amongst them equally (rounded down). No to-hit roll is required and targets do not gain any advantage from their close combat skill to avoid the blast.
For instance, if there are two targets within range, each will take 4D10 galvanic damage from the weapon. If someone is wearing grounded armour they cannot be targeted by this weapon.

Y&S "Buzzsaw" - Heavy Blade Launcher Cannon
Class: Heavy Weapon
Damage: 6D6
Cost: 11,000
Range: Medium
Rate: 1
EMPS: Immune
Ammo: 3 x SMART clips

The Buzzsaw uses magnetic coils to guide a chemically propelled saw blade with terrifying accuracy. The blades launched by this weapon are 30cm in diameter and very thick, so each time the weapon is fired it uses an entire SMART clip. Up to three clips can be held in the weapon at one time, so three shots can be fired before the weapon requires reloading.
If 3 or more of the damage dice come up as 6, then the weapon is considered to have severed a random body part. However, of more importance is using called shots with this weapon. A specific body part can be targeted and if enough damage is dealt it will be severed. Consult the random severing table for more information on this ability.
Trainings that improve a user's capabilities with the tactical blade launcher can be considered to have a separate heavy weapon version. For example, this weapon can be used, with the relevant training, to perform ricochet shots off walls.

IMA AA-90 "Elephant Gun” - Anti-tank Laser Weapon
Class: Heavy Firearm
Damage: 9D10
Cost: 25,000
Range: Long
Rate: 1
EMPS: 12
Ammo: Energy - 1 shot per clip
The "Elephant gun" is designed to be carried by a single agent (Strength 10+) or two people (Strength 10+ between them). It cannot be fired without mounting it on a specially built tripod that is carried as part of the weapon. Setting up the tripod requires three rounds for one person or two rounds for two people. When the tripod is properly configured the weapon can be fired using either Heavy Weapons or Support Weapons skills. If used with a scope (sold separately) this gun can be used as a sniper weapon with the heavy weapon skill (not support weapons).
Requires a Special Equipment License.

Eroz Freezethrower
Class: Heavy Industrial Firearm - specific equipment licensed required outside of industrial areas
Damage: 4D6 Cryogenic damage
Cost: 6000
Range: 10m
Rate: 1
EMPS: Immune
Ammo: Eroz-brand Cryo-Mix (1000 credits to fill one backpack, which gives 10 shots)

The Freeze Thrower consists of a gun and a backpack that contains two chemicals. When mixed together the chemicals react and take an incredible amount of energy from the surrounding area, freezing pretty much anything in their path. The weapon can be fired in two modes; Focused Jet and Arc Spray.

Arc Spray: Sprays in a 3m wide arc dealing 2D6 damage and ignoring AV as if it was a plasma weapon.
Focused Jet: Hit a single target and deals 4D6 damage, ignoring AV as if it was a plasma weapon.

If the target is very well insulated against cold then it can lessen or ignore this damage. Plasma Cores also block this damage. If 2 or more of the damage dice come up as a 6 then a random limb is frozen; it is still functional, but if hit by a called shot it will shatter and effectively be pulped.

Y&S Hodag - Heavy Flak Launcher
Class: Heavy Kinetic Weapon
Damage: 8D8 / 4D8 - causes Mashing Damage
Cost: 10,000
Range: Close / Medium
Rate: 1
EMPS: Immune
Ammo: SMART Clip

The Y&S Heavy flak launcher is a brutal, simple weapon that Ai Jinn heavy weapon specialists love. Its barrel is very short, but also incredibly wide, allowing it to be reloaded with salvaged metal just like the tactical sized flak launcher can. The weapon deals a larger amount of damage at close range like a shotgun.

AMS M65 Heavy Machine Gun
Class: Heavy Kinetic Machine Weapon
Damage: 6 x 2d6 (6 x 2d8 for WF version)
Cost: 10,000
Range: Medium
Rate: Machine
EMPS: Immune
Ammo: SMART
The M65 fires larger shells than the M50 machine gun and is normally reserved for use as a mounted weapon on armoured vehicles. To fire the M65 without deploying its tripod (taking three rounds) requires a strength of 9 and dual wielding them requires a strength of 13.

KAC Shim Long Serpent - Shoulder-Fired Rocket Launcher
Class: Heavy Weapon
Damage: As Rocket
Cost: 750
Range: Medium
Rate: 1
EMPS: Immune
Ammo: Direct-fire and Ballistic Rockets
A simple rocket launcher that is braced on the user's shoulder when fired. Firing the Long Serpent requires that the user take the correct stance, so they do not get a free-action that round. Unusually for a KAC Shim weapon this one does not have a tendency to explode or otherwise inconvenience the user; that is the ammunition's job.
Reloading the rocket launcher is a full-round action but another person can perform the task either at the front or rear of the weapon.
Note: Unlike the Rocket launcher in the Core rules (pg 38) this one cannot launch grenades.
Note 2: The Long Serpent has always been around, it is not a new release, it's just that no one bothered to gen stats for a standard rocket launcher for some reason.

Y&S Laser Tempest - Rotating Barrel Gatling Laser Cannon
Type: Heavy Laser Machine Firearm
Cost: 12,000
Ammo: Energy Clips (x3)
Damage: 6x(D8+3)
Range: Medium
Rate: 1 (Machine)

The Laser Tempest is a heavy brute of a gun that requires strength of 8 or more to fire without a tripod. Carrying two of them at once requires a strength of 14, but good luck reloading them on your own.
Takata heavy weapons use parts of such high quality that WF weaponsmiths can't replicate them in volume, so instead they just added more parts. Three low powered laser cannon barrels rotate to bring them in line with a high energy light source multiple times per second. A large cooling system ensures the barrels do not overheat and melt. The result is a spray of multiple laser blasts capable of hitting  up to six targets and being calibrated to a single shield. It is also possible to make each shot calibrate to a different shield but this mechanism is explained below.
The power consumption of the Tempest requires it be loaded with three energy cells at once and it provides a number of shots equal to a single cell. Any training that makes reloading this weapon a free action simply does not work; it will always need a full round action to replace all three energy clips at once.

Multi-Calibration
With enough training and equipment it is possible to make every shot of this weapon calibrated to its targets' shields. The following equipment is required, including its prerequisites:

• Anascan Reticle Eye
  
• 1000 credit upgrade to weapon to interface with Reticle Eye
  
• Takata Integrated Shield Assessor
  
• Internal A.I 5+
  

Flux shields will still work in the normal manner, but this technique renders ordinary shields almost useless against the Tempest.