I know this might be a extremely small thing and might be a thing and might not be but i'll make the suggestion as if it isn't.
I don't know the if there is a specific term for them but in certain games when you're in MP or CO-OP they have shouts you can do such as "Come here!" "I need help!!" "They're at (A, B, or C)"
It might be something to consider adding. If the game supports other languages it would bridge that game barrier that comes with using Voice Chat to communicate for people who can't, or can't speak the same language.