Darkside is real mess as compared with other KB games. Darkside is worst in the serie. It is full of bugs. You can't recruit light units (normal units in previous games). Nowhere you can buy a royal griffin even though they are present in many hostile stacks! The same goes with ice dragons, you can't even recruit them in premium edition which has viking units. Though you can obtain their eggs via cheat codes! When i was at it, I tried to get Tirex eggs and was successful! So they exist in game files just not present.
What is more, after hatching it, I saw that it has "of the dark" label. meaning that developers abandoned the game half way through! I really hope that sooner or later, they correct its flaws with an expansion, as they did with previous titles!
And these races from previous games are extinct in darkside: lizardmen, dead lizardmen, ice elfs. Many items affect light troops not dark ones, which makes them useless in darkside.
Also there a useless medal called mercifull! What a damn joke when you are playing as bad guys! For obtaining it you have to find 25 then 50, then 100 weak fleeing stacks (about half the amount of stacks you encounter in one game) and let them go, which is extremely hard to find! And when you do that you get less xp and gold and you can't open chest existing in those fields. I tried to get it with every here on normal difficulty. With vampire I failed to even obtain lvl 1 of the medal, with orc however I managed to get the medal up to lvl 2, with demoness, I hardly managed to get it up to third lvl! I found last stack, just right before fighting spirit of the light, when i had given up all my hopes. And most important part was the fact that I was very lucking and had found many +1000 leadership items, and all items that reduce leadership requirement for demons! In the end leadership requirement of blood priestess was reduced to 3 and I had more than 20000 of them in my army! Yet it was so damn hard to obtain it!
Again I hope that they correct its flaws with an expansion, as they did with previous titles!