The (!) symbol is suppose to mean "Help" ,"Watch Out", and maybe "Stop" I believe. But, with people throwing out symbols left and right, most just ignores them unless it's a thumbs up...then you know...you HAVE to respond with a thumbs up yourself. So, basically, all symbols other than thumbs up becomes watered down unless you are in a premade. If they add a symbol for STOP, I think that would be helpful. I try to use the shield symbol many times to tell my non-premade teammates to stop...but, many rushes in regardless.

I know all about the symbols, but others don't. There are plenty of times I will do the attack one on the easier kill for them so it will distract the other one that I can sneak up and attack, but they just sit there. And of course the obvious one, if the other team has a seeker and you request cover, but they end up going straight out half cocked and end up dieing. There are lot of players that have no idea what they are doing though. I have had teammates that have had the parasite mech and not once use the special move they have.