Co-op campaign matches and command markers: mission relay, allied masters, temporary flags

lang/de.lang

@@ -618,6 +618,8 @@ net.error = {0}
 net.rooms = Offene Partien
 net.no_rooms = Keine offenen Partien.
 net.create = Partie erstellen
+net.coop_mission = Koop-Kampagne: Mission {0} ({1})
+net.coop_create = Koop-Kampagne
 net.join = Beitreten
 net.join_hint = Partiecode
 net.seats = Plätze