These images are based around the Clone's as I know the most about them and like them the most

First: The main Customization Menu http://www.majhost.com/gallery/iceytoa1 ... n_menu.png
Second the Armour section http://www.majhost.com/gallery/iceytoa1/Mine/armour.png
So you can pick different variants of Armour and attachments(Via a second customization menu of attachments for each helmet/shoulder/chest/leg/knee).
and Third the Colour http://www.majhost.com/gallery/iceytoa1/Mine/colour.png
Here you can select to utilise a colour of any rank you have progressed through or a currently at (ie A sergeant can have White since he has been a Private and a Corporal or Olive since he is a Sergeant) or a Legion colour scheme, 501st, 212th and so on.
In weapons you could pick versions of the classes weapon for Trooper, DC-15A (Power and Accuracy) or DC15S (High rate of fire and good CQC ability) adding a little bit more tactic to the game.
Or they could just be for the looks.
What do you guys think