Since voice-chat is rarely used in Bf V ( not speaking of premates, more like the random players )
how about only Squadleader and mby a Commander can use voice chat ( talking of future battlefield games ). I also think alot of players enjoy the freedom in battlefield and its also a come and go game where voice communication often just isnt realistic since there are squads where the players play what they want. Some players play with speakers some with headphones, some with motivation to win the round some wanna have nice bombings runs. Netherless some ppl enjoy the tactical aspects in the game and these ppl are probably also willing to communicate with voice or chatwheel( a more specific/tactical 1 than now ). Mby there would be some sort of rewarding system for motivated squadleader/commanders.(special weapons or Skins ) ( the Commander should be a player aswell, mby with special abilities only he can use.