Problem with the NCF mod.

Deep, deep within the NCF topic, you'll find the fix you need.
It changes the creature spawn rate for weak units from 0 to 1.

But I can't guarantee it will help. I have one concern – in Heroes 5, the principle is that the newer the file, the higher its priority. With a simple NCF, everything is normal – first, the NCF-core is created, and then mods for units and a megapack are added, but this fix, which recently changed the spawn rate for all weak units, doesn't mean it will be prioritized over all the mods that came out before it? Or did the author take this into account? It's unclear.