Nah not pings, beacons as in alerting your teamates on the map, a signaling or guiding device. SupCom has it as red, yellow, and blue. I think its F1 or starting at F5 as attack, move, and assist.
the attack, assist, and move things are pings.
[EDIT:] come to think about it, attack, assist, and move pings would be really useful here. maybe the assist should be re-christened to defend as it had a double meaning in SupCom.