Ultimately it comes down to the fact that, even if you want to discount the Blessing of Light granting us power on some occasions, the number and variety of enemies we've faced should allow us to match Zenos blow for blow thanks to sheer skill - yet what I've seen suggests he's going to curbstomp us early in 4.0. This could only be explained logically by him having some kind of power booster... that's my best guess, at least.
Anyway, since I did something like this before Heavensward, here's some fun.
Warrior of Light: A-TEN HUT!
Alphinaud: Ladies and gentlemen, my name is Alphinaud Leveilleur, and I'm puttin' together a special team, and I need me eight Scions. Eight Doman and Eorzean Scions. Now y'all mighta heard rumors about the Assault happenin' soon. Well, we'll be leavin' a little early. We're gonna be dropped into Othard, dressed as civilians, and once we're in enemy territory, as a bushwhackin' guerrilla army, we're gonna be doin' one thang and one thang only: killin' Imperials. Now I don't know 'bout 'chall, but I sure as Hells din't come outta Sharlayan, cross three thousand malms o' water, fight my way through half a' Gyr Abania, and jump outta a [kupo!] aeroship to teach the Imperials lessons in humanity. Imperial ain't got no humanity. They're the footsoldiers of a beastman hatin', mass-murderin' maniac and they need to be deestroyed. That's why any and every sumbitch we find wearin' an Imperial uniform... they're gon' die. Now I am the grandson of Louisoix Leveilleur. That means I'm from Sharlayan. But our battle plan will be the opposite of a Sharlayan resistance! We will be cruel to the Garleans, and through our cruelty they will know who we are. And they will find the evidence of our cruelty in the disemboweled, dismembered, and disfigured bodies of their kin we leave behind us. And the Garlean won't be able to help themselves but imagine the cruelty their kin endured at our hands, and our boot heels, and the edge of our knives. And the Garlean will be sickened by us, and the Garlean will talk about us, and the Garlean will fear us.
*Warrior of Light grins*
Alphinaud: And when the Garlean closes their eyes at night, and they are tortured by their subconscious for all the evil they have done, it will be with thoughts of us they are tortured with. ... SOUND GOOD?!
Scions: YES SIR!
Alphinaud: That's what I like to hear. But I got a word of warnin' for all you would-be liberators. When you join my command you take on a debit. A debit you owe me, personally. Each and every Scion under my command owes me one hundred Imperial eyes! And I want my eyes! And all y'all will get me one hundred Imperial eyes, taken from the heads of one hundred dead Imperials! Or you will die tryin'!
Yes, I am aware the Inglorious Basterds are not exactly heroic; that's half the point of the film.