Not bad, good submission. However, the way this is presented could be better. First, main renders are not that professional, I mean, remove the attachment indicators from the hlmv, or even better, try making some 3dsmax renders.
In-game screenshots are not that bad, yet, you could have shot the models whenever there wasn''t any text disturbing the model visibility.
As for the skin, I think it's pretty good. I don't really mind the fact red camo doesn't exist, that's why I think it's pretty good.
Good overall work, I hope you listen to these suggestions.