How can i make a GUI picture of the players character that updates when the get new armor or anything, like in WoW, by the hp bar, that picture?
without manually doing it the easiest way is using render to texture, which is a unity pro thing, look up render to texture, it should help 
I do not now if you can use this(Java)
var teamnr : int;
var blue : Texture;
var red : Texture;
//Player texture
var player : Texture;
if(teamnr ==1)
{
player = blue
}
if(teamnr ==2)
{
player = red;
}