Editing Hua Yuan Exterminators (section)

===Tyranid Dust Stimulants===
A special Combat Stim made from powdered Hormagaunt nervous tissue, Tyranid Dust is a commonly utilized drug among members of Exterminator Regiments. Inducing in those who snort large quantities of it the ability to "see" Tyranid warp signatures, at the cost of their ability to see color. Those who consume such quantities of "'nid Dust" are also prone to losing their self control, entering a hyperfocused trance, in which they will obsessively seek out and attempt to kill any Tyranids they can find. Killing Tyranids in this state tends to induce a strange trance-like state that allows users to better resist Tyranid Psyker attacks, an invaluable trait when facing down Broodlords.

The use of Xenon is closely guarded secret outside of the Exterminators, and an open secret within, innuendo and doublespeak composing entire conversations when referencing the dangerous Combat Stim. Commissars entering a Tyranid Hunting Exterminator unit (which is the large majority) quickly discover the origin of this sickly drug, and its pervasiveness. Used as a moist snuff or chaw to produce a consistent hyperactive state, rolled like a lho stick and smoked to ward away exhaustion and allegedly prolong life or mixed with Hua Yuanese sewer herbs to induce a heavy stupor (often used whilst on leave), mixed in tea to combat aging and relieve soreness of the muscles, and most dangerously as a glowing white snorted snuff.

Snorting the drug produces the most potent effects, sending those who are heavily addicted to the drug into homicidal rages against the drug's progenitor xenos. 

====Directions to produce Tyranid Dust====
Required Materials:

*Four ounces of Hua Yuanese Mind-Mold
*Tyranid Subject

For safety one should don a Void Suit or similar protection, and for best results one must capture a LIVE gaunt, although the results can be produced as long as the subject's brain is intact and the creature has been dead for no longer than 12 hours. Termagaunt adrenal glands can be used as well but will create a much tamer product. If the subject is deceased only the head is necessary.

1. Expose the cranial cavity of the Tyranid subject by removing the cranial plated carapace

2. Sprinkle the mind mold on the immobilized or dead Tyranid organism's exposed brain, ensuring proper coverage of the exposed area.

3. Wait until the Tyranid's immune system starts showing signs of repelling the infection, or if using a deceased subject wait for about 20 minutes.

4. Using a flamer or similarly intense source of heat, exterminate the Tyranid. When using a decease Tyranid just sear the brain without melting it

5. Extract any swollen nodules from the burnt husk.

6. Dry them, then crush them into a fine powder within 14 minutes of extraction.

If done correctly the final product should be a fine, glowing white substance. The color and brightness of the glow indicates purity. 

After taking a dose, which lasts 1d10+2 hours, a character does the following:
Make a Challenging (+0) Toughness Test. If the character fails by three degrees or more, they are considered infected by Mind Mold (see Dark Heresy 2nd Edition Core Rulebook). Upon success, the character gains the Forbidden Lore (Tyranids) skill at rank 1 and they must make a Challenging (+0) Willpower Test. Success grants the character immunity to Fear effects originating from Tyranids, plus the ability to automatically detect all Tyranids and Genestealers within a number of meters equal to their Perception Characteristic.