Reminder that the
ValveReplaced convar tf_teamtalk with tf_gravetalk
When disabled, living players cannot hear the dead, regardless of team
Defaults to on, except in Competitive matches
Was changed in a #2 update the same day to
ValveUpdated tf_gravetalk setting for Competitive mode to be on by default.
https://www.reddit.com/r/tf2/comments/5ccbi2/tf2_update_2_for_valve_servers_for_late_111016/