The latest issue of the 9th Scroll is here! You can read all about it in the news.
They count towards separate categories, and Army Builder cannot count only part of the points of a single unit towards different category. So it is a software limitation.
If you ask me, if something doesn't make sense here it is counting gun towards one category and chasis to another. These kind of restrictions are ridiculous and complicated and I really hope it will be removed.
Or you could venture over to the dark side and use AB 3.x Sorry shameless plug.EdSteinerSi vis pacem, para bellum - if you want peace, prepare for war
Tool Support - AB 3.x
Download the current Army Builder 3.x 0.204.2 Dataset EN
The wearer gains Aegis (4+) and its Armour is set (not always) to 3 and cannot be improved beyond this. (The program allows to improve it above that value)
ThanksOponiendo picas a caballos
Enfrentando arcabuces a piqueros...
I am the fat Turk that infiltrated the Norwegian Druid Caste.
I would have been better than you if I could roll a 4 on 2D6.
To crush your enemies, to see them driven before you, and to hear the lamentations of ELVES.
Warriors of the Dark Gods
Storm Cast Eternals (WAIT WHAT?)