Killing Kraye

Im not sure the exact list, but this is an approximation:
Kraye
Squire
Ironclad x3
Centurian x2
Hammersmith x1
minuteman

Juniorx1
Charger

mechanics min
Arlen

The third Ironclad might be a second hammersmith. But this should be in the general ballpark.

I would argue that Centurian spam the likes of which Anthony Gibbs plays (x4) coupled with the non-charge ability would significantly blunt the power of the weaponmasters in EI.

Also with Repo 5 they can actually be out of walk/swing range too.

For the list you posted, EI is a fine bet. If you fear that Centurion spam is more likely, it won't work. I have seen that game and it is not pretty for the Protectorate player.

What does work is a good old fashioned gunline. I recommend Sevy1. Feat can drag a jack or two out of CTRL if they're not careful. You focus on the ones in CTRL at that point. Shoot until you cripple movement, cortex, or spear arm, then move on to the next. Kraye needs to charge as much as he prevents you from doing it. Taking his movement out limits threat to a walking 6", which more manageable than a charging 14".

I'd focus on preventing the charge, myself. High reclaimer cloud wall?

I think that list might work for the two Centurion variant posted above. For the multiple Centurion look, it's not going to work. Guardians just doesn't have the oomph to crack that much armor and needs charges to get to the point where it can.

As I mentioned above, it highly depends on what you're running into. I can recommend a good generalist one that also covers the Sloan pair well. Unfortunately, it needs Sevy0.

Basically,

Kreoss1
-Reckoner
-Reckoner
Sevy 0
-Redeemer
-Redeemer
Tristan 1
-Redeemer
-Redeemer

Idrians (max) + CA
Choir (max)
Whatever support fits

The Feat is used as an accuracy fixer and sets you up to take 2 'jacks with guns. Idrians just screen against charges.

It's that latter line that's the problem. You can't pin them in. Repo 5" is a hell of a drug. And if clearing becomes an issue, Trample + Repo 5" in Polarity Shield will still keep you at bay.

Centurions just don't care about POW 10 free strikes.

I speak from experience on this one. It doesn't work out like you'd think and there is no way that you are getting all three of your Warjacks onto his cherry unless he has seriously misplayed his army. The four Centurion look sports three Chargers. Those plus Kraye give you eight boostable shots to clear lanes to a 'jack. A&H allow him to tag you with Fire Beacon through Passage. And Holt himself gives two more lane-clearing shots. With a 14" threat range, you're going to get at least one of your 'jacks charged. And asking three of your heavies to take on four of his in melee when he out-threats you so significantly is an awful lot.

Like I said, though, for the originally posted list it will work fine. Plenty of other targets to charge. Controlling two Centurions is much easier than controlling four.

Edit: I should also add that if the pair is Sloan 5x5, as it very well could be, that's probably what's being dropped against you anyways. Thyra is a risky bid against Cygnar unless you know for sure that they're not threatening any serious stealth denial from range.