NCF – Extended list of Neutral creatures.

It sounds strange, to say the least. What prevents you from creating a .pak archive and putting your stalkers in it? This new mod with a more recent date will likely replace the stalkers from the original archive. In any case, it replaced them for me when I did something similar.

I wasn't just changing things. I even tried to completely delete the stalker files from the NCF Mega Pack archive, without touching the main Data archive. And it had no effect.

Added 2 minutes later

Can you take a screenshot of this Stalker?!

The one that crashes the game? And how? I can only show you how it looks on the map. I can't show you how it looks in battle; the game crashes when I attack it.