Congratulations on learning from your mistakes and butchering Dawn buffoons instead of noble Eventide Knights.
I still remember very vividly how excited the roleplayers were when it came to designing the sergeants, even though I have to say I think some of them don't fit that well thematically without the background of the roleplay. The Wyverns are a good example for this. You have to know their background to see the connection to the Dawn, they don't sound or look the part.
Maybe you still should go with the Ebony Gauntlet, seeing how their Ebony Gauntlet Hammers would probably be right up your alley
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Then there also Falcon Talons (which I think you came up with?), Immortal Mortals (still think this sounds stupid), Valkyrie Einherjar (again, your creation), Radiant Cross Plaguewardens, Windrider Dustriders, Larian Outriders and Squires of the Lion (created later since the orders were no longer present in the Rp or fused with another order), Ravenspear Mercenaries, and Griffon Retainers (not really sure whether they actually had a sergeant troop in the Rp, think you ruled that due to the versatile training that their squires could get, they wouldn't need)