Here are my first thoughts on the Kroma MILSPEC:
First of all, I think it's a shame they don't use the two-stage switch for the colored LEDs. Either it could be used to have 2 brightness levels for the colored LEDs or it could be used to activate the white main LED like it's done on the regular Kroma. There would be NO downside to this as you could always lock-out the high position with the tailcap, just as you do with the A2, L2 etc. I can only think of one explanation for this: they'd have to alter the circuit too much to allow for this, so they decided not to do it.
WHITE beam: This is good, the low beam is a little bit brighter than on my regular Kroma, otherwise they are pretty much the same. Yes, this is not a Cree, not even a K2, it's just a LuxIII, but the beam is useful and will do the job in most cases. Good!
RED beam: Low output with usefull flood beam and little artifacts, this is just about what you need when it comes to night-vision preserving low-output red light. Very good!
GREEN beam: *VERY* low output with a pretty narrow beam with some artifacts. Might be useful when Gen3 night vision equipment is used nearby, otherwise totally useless, even for color-coded maps (because of its narrow beam).
BLUE beam: Very poor beam almost entirely made of artifacts, hard to understand how they could go for these LEDs. A blue Photon Micro offers more output and a beam that is close to perfection when compared to the blue beam of the MILSPEC.
IR beam: The beam is very floody, which is good for most NV situations. Output is very low, even the good old M1 looks like a bright little sun in the beam of the MILSPEC, when other IR lights like the PentagonLight S2-IR or even the X5TM-IR are used, you can no longer decide if the MILSPEC's IR beam is on of off. Don't know what to think about this. If you're reading maps with NV equipment, then the MILSPEC's IR beam is perfect. I can also see it work when moving inside buildings. However, for outside use and fast moving, you need more output.