From Halo Bulletin 8-15-12:

Rogue Specialization: Spartan optimization for single-operative missions which require a lone Spartan to be deployed on their own for incredibly long durations of time, even years if required.

Stability Armor Mod: The Stability armor mod allows users to increase their aiming stability when being fired upon.

The Stability armor mod – which features several sharp fin elements and sharp angles – makes you flinch less when you’re zoomed in and getting hit. It will be valuable to players that prefer using precision weapons and often find themselves engaged in long-range battles. If two similarly skilled players, both with DMRs and using scopes go head-to-head, the person using Stability has a small advantage. Skill and steady hands will still win the day but Stability allows you to keep your aim on target when facing multiple bullet strikes. Similarly, the player with DMR and Stability will have a larger advantage over a player with AR at long range. But (and yes, there’s always a “but”) the player they’re fighting may have made a choice for a different mod in that slot, which may come into play with an additional grenade or something else. Victory is never guaranteed…

HFFL’s thoughts:

Objective: Stability of shot while being fired upon.

Subjective: I definitely like this mod. I’ve grown much more accustomed to shooting from ranged  distances rather than close up. So this mod is one I’ll likely use often.

Armor: This armor is KICK ASS! Beefy shoulders, but not overwhelming and YES the helmet is AWESOME! Finally one of the specializations with a proper larger visor. I’m definitely more partial to the red/orange/silver visor than the plain gold.

Emblems: OMG, 343, you created this mod for me didn’t you? Okay seriously though, these emblems are great. The Howling Wolf (Hmm, sounds like a good name for a gaming group) is a much improved version over the previous iterations. The “Skull Fox” emblem (not it’s real name, but what I’m calling it) just screams to be used.

Of the 5 specializations I’ve discussed thus far, THIS is the one I’m most likely to use. Not just for the mod, but for the armor and emblems. It’s the whole package to me.