The MedCom is the teleportation network that can send fallen heroes directly to the hospital for treatment. This node is the center of the network; the other nodes are on the outskirts of the city.
The badge is 354 yards southwest of the Land of the Lost marker. First make sure you are on the lowest level for traveling because as you know, Skyway City has many levels. The badge marker is located just to the right of Vitaly Cherenko, a contact in the Land of the Lost neighborhood of Skyway City. The marker is approximately 280 yards due west of the midpoint between the Land of the Lost marker and the helicopter to Bloody Bay.
Its coordinates are (1,577, -84, -677).