Hello. I have a somewhat strange question, and it might not be entirely relevant.
I want to transfer the world of Heroes into a real-time mode. To do this, I'm creating a mod for The Lord of the Rings: The Battle for Middle-earth 2. I'm taking models from Heroes 5: Tribes of the East. I want to immediately introduce factions like: Sanctuary, Fortress (Swamp), and Conflux. For this, I need models from the corresponding mods. Also, I need some units from the NFC project and models of some heroes. I'm not claiming authorship; I'll have to make some minor edits, at least for rigging. Question: from whom do I need to ask permission, and is it even necessary to ask permission to use these models?
P.S.: Many models belong to the user psatkha, and he often visits here, so I'm asking here.