I recently saw a video where a ex marine was reacting or Arma 3, and in one of the clips one person was telling the other person that he was going to throw a flashbang into the house, the ex marine said you would communicate something like that with hand signals as someone inside may understand english and warn the people in the house. This isnt really a problem as there is squad VOIP but would be cool for milsim.
Implementation: have one person select an action from a chat wheel, after select the character raises their hand and does a sort of animation and an emoticon or a short line of text above them displays(for only near by teamates) their suggested action.
