marti

Directed-routing recipient callsigns from <marti><dest callsign='…'/>…</marti>.

Empty (proto3 default) = broadcast to all peers, the common case for PLI / situational-awareness. Populated when ATAK addresses the event to specific recipients — TAKTALK m-t-t voice / text, directed b-t-f DMs, and any other CoT shape that should reach a named subset of peers.

TAKTALK gates voice TTS playback on this list containing the receiver's callsign; dropping <marti> on the wire breaks voice messaging end-to-end.