DO/ARM/Regiment attributes

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Bit	BYTE 1	BYTE 2	BYTE 3	BYTE 4
1	Unimpeded by difficult terrain Elves, treeman, spider, black grail, skel horsemen and wraith	Suffer additional wounds Only skeletons and training dummy have this.	Giant Only Treeman has this	Unused
2	Hate Greenskins Elves and treeman has this	Unused	Aetherial "racial" flag Only wraiths have this	Unused
3	Goblin racial flag Goblins and goblin fanatics have this	Indestructible Only necromancer in B1_03 has this	Unit contains fanatics Only goblin with fanatics has this	Fear Elves Which unit has this?
4	Elf racial flag Only elves have this	"Engine of War" Rule Steam tank and goblin fanatics have this	360 Degree Vision Only giant spider has this	Can't be selected Only goblin fanatics have this
5	Cause terror Black Grail, Dread King, Hand of Nagash and Wraiths have this	Unused	Flammable Treeman and mummies have this	No Item slots Treeman, scorpion, spider, and wraiths have this
6	Cause fear Most undead have this	Flee if charged? Stand firm then FLEE!? Only villagers have this. Could mean to never rout until enough to flee the battle	Destroyed if routed Wights, wraiths, zombies, Carstein and dummies have this	No retreat, no surrender! No regiment uses this. Unit will never rout, retreat button without any use. Banner of Defiance and cheat code DONTMESSWITHME and Ctrl+C+I have the exact same effect
7	Unused	Regenerates wounds Only trolls have this	Cowardly Only ghouls have this	Impervious to Magic Only necromancer in B1_03 has this
8	Will never rout Flagellants, steam tank and most undead have this	Immune to fear, can be routed Most undead have this	Inflicting casualty causes fear Screaming skull, undead chariot and Nagash has this	Goblin Flag (Trading Post Map only) Only Night Goblins in B1_01 have this
Certain and tested Highly likely but not tested Function basically undeterminable... :( Guess and/or untested

I changed "psychology" to "attribute". I originally used the term psychology when I started mapping out the .arm files, and I thought that only the Warhammer psychology stuff (like hatred, saga animosity, fearless, etc) were stored there. But as also physical stuff like terrain striding etc are represented here "attributes" is a more descriptive term. Mikademus 23:24, 18 September 2008 (UTC)

I have started colour-coding the above table. Since it has been a while I am not certain which attributes I definitely determined and which I merely surmised. Ghabry is the the current authority on unit attributes, and I hope he will be able to complete the chart. Mikademus 12:43, 19 September 2008 (UTC)

Certain or likely flags

Flag #9 (byte 2 bit 1): In DO only skeletons have this set. It seems to be the undead army list rule that skeletons (which are immune to fear and don't take rout tests) take additional wounds from being pushed back

Flag #24 (byte 3 bit 8): This is an adaptation of Warhammer's special Screaming Skull Catapult rule. The Screaming Skulls fired by the catapult cause fear, so if even one casualty is dealt the receiving unit must take a rout test. Since Hand of Nagash also has this is is surmised that is is also used to give extra oomph to his attacks, and in extension, to the attack of any unit with this flag.

Uncertain flags

Flag #3 (byte 1 bit 3): Only goblins have this set. It could simply to indicate race, or it could be to indicate goblins' racial traits. The WHTTv4 rules about goblins are:

Flag #4 (byte 1 bit 4): Only elves have this set. It could simply to indicate race, or it could be to indicate elves' racial traits. The WHTTv4 rules about elves are:

Are elves equipped with the same longbow (missile weapon type) as f.i. Helmgard Longbowmen? If so then we know that at least the additional distance rule applies.

Flag #18 (byte 3 bit 2): Only wraiths have this set. It could simply to indicate race, or it could be to indicate wraiths' special traits. The WHTTv4 rules about wraiths are:

Flag #12 (byte 2 bit 4): This units can't fight in Closed Combat and can drive over other regiments while charging.