Wait a bit, I need to try to map this all out on my white board… 
Both of my engineering kids skipped the two ENC classes (due to AP and AICE credits). They both HAD to take ENC 3246 because it was a college of engineering requirement (for Industrial and Aerospace engineering). Most if not all engineering majors require ENC 3246. In fact, for Aerospace, ENC 3246 is a pre-requisite for EML 2322L (Design and Manufacturing Laboratory) and EML 3301C (Mechanics of Materials Laboratory), as ENC 3246 covers how to write a technical paper/lab report.