The Federation of American Scientists claims the MiG-29 is equal to, or better than the F-15C in short aerial engagements because of the Helmet Mounted Weapons Sight (HMS) and better maneuverability at slow speeds. This was demonstrated when MiG-29s of the German Air Force participated in joint DACT exercises with US fighters. The HMS was a great help, allowing the Germans to achieve a lock on any target the pilot could see within the missile field of view, including those almost 45 degrees off boresight. However the German pilots who flew the MiG-29 admitted that while the Fulcrum was more maneuverable at slow speeds than the F-15 Eagle, F-16 Fighting Falcon, F-14 Tomcat, and F/A-18 Hornet and its Vympel R-73 dogfight missile system was superior to the AIM-9 Sidewinder of the time. In engagements that went into the beyond visual range arena the German pilots found it difficult to multi-task locking and firing the MiG-29's Vympel R-27 missile (German MiG-29s did not have access to the more advanced Vympel R-77 that equips other nations' MiG-29s) while trying to avoid the longer range and advanced search and track capabilities of the American fighters' radars and AIM-120 AMRAAM. The Germans also stated that the American fighters had the advantage in both night and bad weather combat conditions. The Luftwaffe's assessment of the MiG-29 was that the Fulcrum was best used as a point defense interceptor over cities and military installations, not for fighter sweeps over hostile airspace. This assessment ultimately led Germany to not deploy its MiG-29s in the Kosovo War during Operation Allied Force, though Luftwaffe pilots who flew the MiG-29 admitted that even if they were permitted to fly combat missions over the former Yugoslavia they would have been hampered by the lack of NATO specific communication tools and Identification friend or foe systems.