From Halopedia, the Halo wiki
The ST/Medusa missiles are mounted in pods on YSS-1000 Sabre starfighters and F-41 Broadswords, one pod on top of each wing. The missiles are fired in salvos of two each, and have lock-on capability. One salvo is sufficient to destroy a Banshee interceptor and even an unshielded Seraph fighter. The missiles can lock-on from long range and the amount of missiles that hit the target is determined by the time spent locking on, although even one or two missiles can prove deadly to most targets.
The missiles are extremely ineffective against energy shielding and will simply bounce off shielded targets.
The F-41 Broadsword is equipped with two M6088 ST/MMP missile delivery systems. This model is more powerful than the model used on Sabres, as it can effectively destroy Forerunner weaponry, such as Z-8250 light artillery.
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