The Endless Malice rule of the Preyton is very messy.
You have to take an Ld test either for pursuing AND for restraining for pursuit?
What happens if you fail those tests?
If you fail the test to restrain, you test again to pursue?
Does the Panic test ability activate only if you don't restrain and fail the test? Isn't this the same as simply restraining?

Suggestion: "Should a Preyton be on the winning side of
a close combat, it automatically restrains from pursuit (No Ld test needed). In order to pursue its foe or to overrun, it must first pass a Leadership test. If it fails the test or elects to restrain, it remains stationary whilst it rends and tears at the fallen. Enemy units within 12" and with line of sight to the Preyton must take a Panic test in the face of the beast's horrific display."

In the Brass body special rule, Taurox dies instantly if a roll of 6 To Hit and To Wound is made against him and he fails his saving throw. Read as Written, if Taurox doesn't get a saving throw due to an attack ignoring armor or being strong enough to pierce it, then he doesn't get instantly killed.

Jim#3833/mambozambo

TREASON OF TZEENTCH is missing "This spell has no effect on single model units"? Don't see a mention about it being changed, so it might be a bug. Old lore text says it presuades to attack their comrades. Currently it works like it presuades to make a suicide if cast on a single model. Could also think about some wording on single models if they're mounted, that it might work that way, so it could be casted on MOUNTED single models?

Jim#3833/mambozambo

1 chance out of 6 to transform any break test into a success is a rule appropriate for zealots and fanatics, that can hold against any odds for absurd reasons. Mercenaries are notably more unreliable than regular troops who fight for their country or just to prevent their farm to be burn and their family slaughter. The unreliability of mercenaries is pretty foreseeable (you can read Machiavelli Art of War for an insider view on Renaissance's mercenaries). On the contrary, Mercenaries fight well when the odds are goods. They must have some kind of bonus, but it shouldn't be on moral - which is their weak point - but should express their greater experience of battle. They are professional who usually saw more battle than Empire state troops or any levy troops, but who see their own life as more precious than any nationalistic idea.
I understand that the rule have a downside. But let be realistic, it is anecdotal at best. Most units are out of combat if they fail a break test so a Ld penalty afterward is likely to have no effect on the battle.
Anyway, I report it as a bug because clearly the rule was suppose to make Mercenaries unreliable as the fluff suggest, but in fact it does the opposite, making them behave as fanatical troops ready to be slaughtered for some idealistic cause.

Skaff, the Standard Bearer of Golgfag's Maneaters, has the stats of an Ogre Bull except with an additional Attack. Given that he is now a Maneater (and not a "mercenary ogre" anymore), his stats should be those of a Maneater with an additional Attack.

Pike of Remas. The sentence explaining the pike of remas can be taken even though the model can’t normally use a pike needs reinstating, as currently this magic weapon can’t be used. Or give merc captains the ability to equip pikes.

Jim#3833/mambozambo

Then Incandescent Rectrices should be more specific. Here's what I would replace the last sentence with: "On a 3+, the model is not removed as a casualty, however, they are reduced to one wound if they were already at a single wound."
This would make it clear how the rule works with Killing Blows, Multiple Wounds and other things that can completely take out a model with 2 or more wounds remaining.

Helm of Commandment currently says: "The Helm of Commandment gives the wearer a 6+ armour save. In addition, if the wearer is not in combat, one friendly Undead unit within 12" may use their unmodified Weapon Skill instead of their own in close combat."

RAW, it's unclear if you are supposed to be able to win a combat with a Vampire wearing the Helm of Commandment, break the opposing unit, and then use the Helm of Commandment in the same turn to buff another unit. Please say either:

A) In addition, at the start of the close combat phase, if the wearer is not in combat, one friendly Undead unit may....

or

B) In addition, if the wearer is not in combat (even if they were in combat earlier this turn), one friendly Undead unit may...

One can make the case that cavalry can't use Swifstride. Swifstride is a rule listed for cav, but it's not in the list of "whole model has it" special rules, so only the rider has it. Since the movement of the rider is never used the mount can't use swistride.
Similar thing for impact hits, but less of a problem because the strength of the attack is specified.

Despite multiple references to choosing "Hold" as a charge reaction, the rules are very clear about there only being two charge reactions: "Stand and Shoot" and "Flee!". "Hold should be added as a third charge reaction rather than being described as a lack of charge reaction as it currently is.

Magic resistance: not clear if the bonus to dispel applies if the wizard dispelling a spell is outside the unit. RAW “a model with MR targeted by a spell obtains a bonus to dispel for spells directing targeting it”. The wizard dispelling is outside the unit, not targeted, no MR dispel bonus even if the unit has MR.
Is it intended this way?

RAW characters that can take heavy armor and can't take mundane shields (e.g. Von Carstein Vampires) can still take magic shields because the heavy armor they can take is "armor with a better save" than a shield. Please clarify that characters who cannot take mundane shields cannot take magic shields also. Thanks.

Standard of Discipline
Sometime it's not Général that have this rule.
I propose this wording in order to avoid certain abuses.

A unit with this magic standard has +1 Leadership, but cannot use the Inspiring Presence special rule. If the modele with this rule joins this unit, other units using their Inspiring Presence does not benefit from the +1 Leadership bonus.

>“Range

The range tells you at what distance the weapon can be used. If a weapon's range is 'combat' then it can only be used in close combat. If the range is a number of some kind, it is a missile weapon and the number is its maximum range.”

Range for Pistol of Brace of Pistol so it's missile weapon and not close combat weapon.
Maybe write “Range 12" or Combat” for these weapons.

Under "Taking a Break Test", first paragraph:
"If the total is greater than the unit's modified Leadership value then the unit has broken and will flee."
You must take a break test if your modified Leadership is 1 despite being unable to succeed. This sentence could be changed to "If the total is greater than the unit's modified Leadership value minus one then the unit has broken and will flee."

Overlord and Overseer. The standard formula for fighting heroes and lords seems to be adding +2 and +3 WS and +2 and +3 initiative for heroes and lords over whatever their 'base infantry' is (chaos dwarf warriors in this instance). These units only have +1 and +2 initiative respectively. IS this intended?

Should the Overseer and the Overlord pay the same amount of points for their upgrades? Making an overseer pay 17% of his starting cost for an armor upgrade seems punitive. Also, it seems out of sync with the other books to not have the hero version's upgrades cost less especially since the weapon upgrades cost less.

In "Fire & Flee" please clarify that the shooters take -1 to hit for "Stand & Shoot" and also a -1 to hit for moving and shooting, for a typical total of -2 to hit (Quick to Fire weapons can ignore one of these penalties, for a total of -1 to hit.)