One of many tanks I have drawn up for your table top games or your amusment.
I own most of a OPR "Soul snatcher cult army" and made this on what I think the unit would look like.
I have included all the weapon options you would need to build both for this OPR unit.

I am a rank amature and I have no idea if the print will work or how this is done.
I have never printed anything in my life.

Let me know if it works and if you like it.
feedback welcome.