Air Force need practice in live-fire environments. Live-Fire training for the air force allows them to bomb and strafe using the real ammunition and fire at targets on the ground as they would in real life situations. Using real ammunition and real aircraft provides a bigger sense of what would happen and the feel of the aircraft in battle. Also having multiple aircraft firing around you, which the MS Instruments equipment is designed to allow increases the real life feeling to the live-fire training. By training outside the pilots are also subjected to environmental factors that they would not be aware of when training using a simulator such as wind and straining their eyes due to sun