The top part of the legs could be a bit more muscular, and the army boots should be higher (pants should not be over/cover the boots top part, this is bad when walking in mud)
you should also include some animations for using the radio, kneeing down, working on some item/console
I think the model is cool! (I bought it yesterday) But as Oxy already said, I would really like to have some more special animations like kneeing, talking ore giving signs to attack. It would be cool if there was a version witch no helmet or glasses, because this is not possible with the current version. Is there a way that you could improve the model, if many people would like to have these "features" ?