Cyberdrake is made up out of mechanical monstrosities and mergings of flesh and metal, save for their conscripts. As such it's no surprise that they love using toxic weaponry, because it leaves their own men unaffected while killing all organic enemies. The Desecrator embodies this.

Desecrators have a powerful suit of airtight armor. The arm of this armor has vents that exude a powerful neuro-toxic gas, whcih is so thick in the air it makes part of the Desecrator invisble when this weapon is used. It also makes it impossible to engage the Desecrator up close, because you'd choke.
The Toxin Cannon on this other arm fires a stream of toxic, perhaps nucleair waste. Hard to avoid and nigh impossible to survive.
Lastly, Desecrators have access to Drillbombs, which are essentially elongated grenades with a drill on one end. This drill drills the bomb into whatever it comes into contact with before the bomb causes a minor explosion, releasing the powerful toxic gas inside. This weapon is extremely suitable for clearing enemy vehicles.

That this method of fighting usually comes at the cost of many innocent lives, Cyberdrake hardly cares about. "Should have concsripted." they say. "Signing up comes with a free gasmask."