If you read the note from Kurt closely, you will notice he is only talking about pulling one Spartan out early form Beta, and that is Sierra-312, aka Noble Six, Lone Wolf, or LT. Its right in the very first paragraph. The intriguing thing is that Kurt goes on to talk about deploying Category 2s in the field, but that not all of them are in field, and that they are bending the rules by arming them as Spartans. Made me wonder if there weren't some numbers fudged along the way with the augmentation process, that some really did pass and were only reported as having "failed", specifically, Sierra 170 and 091, although 170 should be a spartan 3, 091 would be a Spartan 2, and is not listed on the Halopedia as having survived:
http://halo.wikia.co...TAN-II_Program. My thinking is that ONI sublet a spartan program through the army to launder the budget and numbers etc, that it is becoming more of a black on black operation. This would explain the disparity in numbers, and information etc. It would explain why you see spartan 3s wearing mjolnir, maybe they would have been subjected to different augmentation than their Navy brothers. Just a thought.