Undead are immune to anything affected by morale. i.e. it cannot be buffed or debuffed in any way. 1a: Can I still improve it with traits? 1b: Do undead flee from combat/have ot make morale checks?
Since undead are non-living, does this mean they just cannot use siege equipment unless they have sufficient toughness? (i.e. a toughness 3 undead model couldn't fire a strength 8 ballista because the difference is 5+ ?)