CC0 Use it as you wish.
Design and lore by my good friend BANROVIA.
3d model made in blender 2.9 in about 20hrs. Procedural textures in the blend file.
Download links
Sketchfab:
https://sketchfab.com/3d-models/nuffham-mk1-fictional-tank-cc0-ba014fd6a93f447f8ab5eaa3f5315a38
Blendswap:
Pending.........