Or how about quick commands, like in BF1942, or BF2. Switch to mode 5 for commands.
Command 1= Need Assistance
Command 2= Need Supplies
Command 3= Need Goons
Command 4= Need Escort
Command 5= Need Bomber Support
Command 6= Need Ground Support
Command 7= Enemy Bomber Formations spotted
Command 8= Enemy Fighter Spotted
Command 9= Enemy CV spotted
Command 10= Enemy GV spotted
and the list goes on
This could be used by typing .Command 1. On the chat bar or up top on your screen it would say [Players name, Needs Assistance] or say .Command 9 [Players name, Enemy CV spotted] If we had an AI say it like Need Supplies over vox that would be to annoying and over abused like it is in BF1942, but with it showing up in the text bar, or on your screen somewhere this could be needy for players to team up without having to start a mission. Special feature is right when u request help a player can pop up his map and see maybe a Blue star glowing on the map to show your posistion or the current request, and other color stars to show other commands. Like Red stars for enemy spotted, Blue stars for Needing help, and gold stars for supplies, or goons.