I don't think you're required to submit college credits, only high school transcripts. Though if you have enough credits you can get some extra money potentially, you'd have to weigh the risks. I'm not familiar with the policy on college courses, seeing as I never took any classes, and consequently never had it factor into the mix.
There is a trend between coming to nuke school and doing poorly in college, or at least that's what folks claim here.
Hope that's somewhat helpful.
-Mike