yeah vehicle chat would awesome... the amount of times i have gotten killed because someone who wasn't in my squad couldn't be warned about a threat quickly enough... vehicle chat channel would be a great addition. nice idea.
What i should ad is voice Chat with JETS&Choppers needs some coding ofcourse but for example
For example an Groundpounding squad has problems with some tanks . that they can deploy (like Attack this position, Defend this position) but then for an Jet&chopper you can deploy an AIR SUPPORT NEEDED AT THIS POSITION and then the squad can tell whats the vehicules are.
i say when u press b, every1 on ur team in a 10m radius should hear u, it would increase better communication for chopper pilots and their gunners when theyre in different squads