Since every helmet is different, I think you would need to upload a mini-chams in which the heads of all users are the same colors, except for the opposing team (red for enemies, blue for friendly) and then have the color trigger work off of that color. It doesn't seem to work for me, either. Could you provide us with a video or a better explanation?
Dont work at me i opened ava make windowsscreen 3rd crosshaire open trigger but nothing happen :/ its just tell me where my mouse is