I aggree with the above posters. Nords seem to be the same as in 2.4, which means way underpowered compared to other factions. Note this is only when you as a player control the battles, when the computer determines winner, as was said above, only tier and numbers matter, not loadout.
I actually started Nord again in 2.5 to see if anything changed but after playing for sometime it doesn't seem to have. I use decent Nord tactics and can hold my own with any other faction with equal numbers (but always loose around %15 of troops per battle) but I can't dominate battle as when I am playing vaegirs or swadians.
I don't want the superhuman Nords of vanilla but I do think their loadouts should be improved.