Hey i read the manual but i can't find anywhere that explains what the green circle is (on the top right hand corner when u play the game) Sometimes it flashes sometimes it doesn't, sometime it changes colour, sometimes it doesn't.... any help would be appreciated

It's the ping signal..when its green, ping is goooood, when red, someone has a high ping or the server has high ping

It should be a skull, because lag basically = death :-P

Or lack thereof
.

You can mod it to be whatever you want :P