[aleXtric]

eh i couldnt tell you what you should do since the silhouettes are pretty vague. I feel like armored up models always turn out tacky. No soldier really wears armor outside of bullet proof vests and helmets in real life and the armor they do wear is underneath uniforms. Each classes size should be defined by body mass not how heavy their armor is. Also why would the heavy be wearing knee pads?

Differentiate classes by body size and clothing (short sleeve, long sleeve, jacket, turtle neck, shorts, pants, etc) the TF2 models (no matter how cheesy/cartoony they are) are a perfect example of how to make each class look different and easily distinguishable.