Complex sentence: Additionally, Air Command was adamant about having the ability to fire the AIM-7 Sparrow missile, which neither the F-16 or F-17 had originally included, in keeping with their short-range "dogfighter" role as originally envisioned.
Split into simpler sentences: Additionally, Air Command was adamant about having the ability to fire the AIM-7 Sparrow missile. Neither the F-16 or F-17 supported the Sparrow, in keeping with their short-range "dogfighter" role as originally envisioned.