FPSBanana's rules are not ours. Liberal usage of the word 'illegal' by a bunch of random posters in their comments sections didn't concern me much, as this question is posed for theNexus community. I went through the EULA for Starcraft 2. Technically there's nothing in their agreements that would be violated for my using of the 3d models for a public/non-commercial mod. That being said, as requested by Bben46, I've made a post on the Starcraft 2 mapmakers official questions thread inquiring about this, and I've also contacted their support department. Thank you Bben46 for responding in a timely manner.