Great work so far, some feedback and thoughts about units ;

- Immortulz, I think that you should lower their melee defense and up their melee attack.
Having that much defense is not so "orkish" even more for a two handed unit
And for the price (2000 gold), maybe add a little more damage (I'm thinking about another popular mod unit = Blood knights to make a comparison)
The unit card is the same as black orcs, dont know if it intended, but i'll note it here

-snotlings : Their morale should not be infinite, in the lore they are worse than gobos, they should flee fairly fast
as you made them with a lot of HP (which is ok since they're 200), you should lower their stats by far, as things stand, you can have armies of snotlings in the beginning of your campaign that are hard to kill (HP) and cost nothing, it breaks the balance and the spear goblins become useless
Weapon damage is over the top too for brainless little snotlings
I think you should make them kind of like zombies, low def / attack, just like meatshields ; snotlings are kind of pets to the orcs so maybe give them a buff for orcs units in a radius and lower their stats
For the armor, they should have 0 as the savage orcs, snotling dont wear any kind of armor

orc stikboyz / big'uns stikkas : Their stats are well balanced for the cost, just a detail ;
spears in general have less attack / damage as their swords counterpart but bigger defence , I think you should up their melee defence and tone down their damage and attack

thats all for the prattling, keep up the good work !

Note :
Was wondering if you would accept localisation for units description and all.I'm no modder but would be happy to translate in my native language (french), well thats it.