They didn't have missiles hence why the DCS pilot may have done better as they said at the time the pilot was not practiced on the simulator.
If anyone else is wondering, they used a 3000 foot cone with point at the nose of the simulated aircraft, any time the enemy got within 3000 feet and 1 degree of the boresight of the plane, a certain number of hits per simulated frame were counted as hitting. Get X number of hits, that's a kill. For the livestreams they wonderfully represented this as a health bar.