No, I doubt it. Lightsabers endure electrical, plasma, and laser-based attacks with ease. They might not deflect the shot back since it's less refined (while a plasma repeater or rifle along with a beam rifle and carbine rifle might get deflected) but it would stop it.
English
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Elites with energy swords > Jedi due to sheer numbers Covenant and unsc> clone army Covenant glass everything, unsc has Spartans
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You underestimate the power of the Force.
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You underestimate the power of master chiefs bullshit luck
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You forget the power of the forerunners and precursors. But caboose kills all!!