Right now people can only communicate with microphones. Before the game starts (in lobby), however, there is a text chatbox available. So why isn't it also a thing in game itself? If not for alive councellors, then at least for those who are already dead. Alive councellors without a microphone could use a chat wheel, for example, using which they would be able to make their characters say certain things ('follow me', 'Jason is here', 'I've got car keys', 'we need gas' etc).