Hello.

I have encountered a problematic situation. I have used a model that is an edited version of a TF2 merc. In this case I mean the maskless spy model. However this model was not availible on workshop, so I had to download it from a non-workshop source. Now that I am using the model, do I need to ask a specific permission of the creator in this case? Would using it and only crediting and linking be enough? Is the usage without a permission against the rules?

I have read the rules but I am still a bit unsure. This is urgent so please, any relevant information is appreciated.

Thanks