I have a possible Nord's roster to suggest.
* The A5 and A4 should be no better archers than A3, to avoid Nords having great archers, just decent ones. The upgrade should grant them better armour, melee weapon, and melee proficiencies. That way, it'll emphasize the Nords expertise in infantry combat, as even the archers can double as infantry.
Additional Note:
- All infantry, starting at tier 3 should have throwing weapons. The axe/shield and 2hand-axe units should throw axe, and the spear/shield units should throw spear.
I think this capture the Nords experience well.
1. The roster is not one-dimensional. Every other faction is not one-dimensional, so neither should the Nords. Giving them a proper archer unit (capped at T3) means they have some range support.
2. Unique archers to better fit the Nords infantry warfare by making their A4 and A5 archers able to double as proper infantry, perhaps with decent armour, 2hand-axe, and melee proficiencies.
3. The Nords infantry should be the best, not only in quality, but also in versatility. They have:
- axe/shield units for shield walls, and siege offense/defense
- 2hand-axe units for charging and siege defense
- spear/shield units for anti-cavalry
4. All infantry has throwing weapons make their infantry unique, and set them heads and shoulders above other infantry. Basically, the closer one approaches the Nords infantry, the more dangerous it become. First arrows from the okay-ish archers, then a hail of throwing weapons, then of course the melee rumble.
5. Axe-maniacs. Their two best lines of units are axe carriers, and their archers should carry axe as well.
I think this roster is simple enough, and covers all the basis for the Nords.
Cheers.