Quite right. Back then when they were less cheap/lazy, there were multiple models per class, depending on the role. One of the models carried over to Battlemaster with a recolor, one didn't. You can see them all for bounty hunter here - http://i.imgur.com/gMGD35h.png The model he wants is the one that didn't carry over, sadly.

I'm afraid that exact helmet model is not obtainable and hasn't been for years. The centurion and champion sets were never craftable, only Battlemaster and War Hero. And while there was some overlap with Battlemaster, that exact model was not among them. If you saw it, it was on someone that got it back when they were obtainable. You can probably get close to the same model for all the other pieces with the cartel market Savage Hunter set, but the closest you can get for the helmet is the Battlemaster Medic or Eliminator helm, or the Deep Space Starfighter reputation helmet. They don't have that organic skin though.

Likely even if it isn't. I did some testing the other day in response to an earlier post and it appears they probably removed the ability to RE other people's crafted black-red, black-blue, etc operations crystals in 4.1.

The materials or the crafted artificer items? The prices of the basic +41 stat color crystals (Blue, red, green,yellow,orange, etc) have certainly crashed since 4.1 and will likely stay that way for the forseeable future. Prior to 4.1 the schematics had barriers of entry in finding the vendors and paying the token cost, or getting the rare drop schematics in the case of orange. Now they're just easily obtainable trainer trash. The value of certain grades of raw color crystals has also changed in reaction to this, as many crystals changed from requiring high grade/level crystals to various lower grade ones. As Psandak wisely infers, the markets always change and you have to adapt.

Those two crystals were only identified by datamining, which technically we are not supposed to discuss on this forum. They were not promised to us in the patch notes or anywhere officially. And all the other craft skills besides artifice are still rife with bugs/data errors. All they fixed was the major UI access bug.

No, the (now) 212 rating non-moddable artifice and armstech crafted weapons can be RE'd up to 216 and 220 as well.

Just did a little testing to check on that with two of my artificers, and it looks like they may have removed the ability to learn the operation dropped color crystals via that method in the patch.

Yes. Practically every craft skill has various items bugged like that.

The new 200 rating Armstech barrels are requiring the new Underworld Trading metal vandinite instead of the new Investigation compound glasteel. The 208 rating versions properly require glasteel, but also require the new rare and artifact tier slicing materials instead of Investigation materials. Similarily, the new 200 rating weapons also require vandinite.

The new cybertech grenades all require the armortech crafted polished aluminium armor assembly components instead of the cybertech crafted polished aluminium cyber assembly components. Seems like a database bug.

Get your skill up. They're on the trainer, require 520 skill to be visible unless you toggle the filters to all.

Not seeing them anywhere obvious myself. Perhaps they're on the future eternal championship vendor that got pushed to 4.2 or something like that.

From a quick look, Breaktown has all the scavenging/slicing nodes, and the Endless Swamp the bioanalysis and arch ones.

Artifice had the same issue for many schematics right after 4.0 hit. Took them about two weeks to fix it.

Indeed. May still be better to just keep farming materials on Yavin and trading them up on the temporary vendor until they take it away though.