The Aggressors used to fly F-5s before they converted to F-16s. When I was flying F-4s in England, we had the F-5 Aggressor Squadron collocated on our base. We used to fight them more than most other units because they were so close and they could add us to their schedule at the last minute. Those guys were the best and no matter how good you thought you were, within 30 seconds they were on your six and the fight was over. We were faster than the F-5 but they could out turn us all day and you can't out run a missile.