Single clicking an ally objective on the map communicates "Headed to yellow/blue", while double clicking communicates "Yellow/blue needs help".
For the green lane there's no "Headed to green", though. A single click throws "Defend green" instead, and the double click is still "Green needs help".
For the green lane there's no "Headed to green", though. A single click throws "Defend green" instead, and the double click is still "Green needs help".
