From Halo Bulletin 8-15-12:

Stalker Specialization: Spartan optimization for target shadowing missions which require tactical invisibility despite operating at an extremely close range to the target itself.

Nemesis Armor Mod: The Nemesis armor mod allows users to target and track down previous attacking enemies, highlighting them on the armor’s passive sensors.

Nemesis armor – which features lines that are both strong and stealthy – gives you an icon on your HUD of the last person that killed you. While some people utilize it to get revenge, others use it to avoid that person (for obvious reasons). It’s also useful when playing defense for seeing where an offensive player is going. On maps with limited visibility, Nemesis can provide a short window of intelligence in the movement of enemy players or teams, allowing a respawning team to react and steal a match. In play testing, we’ve seen players trusting the extra information implicitly and falling for feints or being target fixated with the extra information and being lured into unfavorable situations. As with everything in Halo, this upgrade allows you to tailor your play to your style but remember that the enemy team is aware of the ability and will be countering and often using it or another option to tip the scales back in their favor.

HFFL’s thoughts:

Objective: Radar showing who previous attacked you.

Subjective: Hmm, I see this mod being exploited for all kinds of douchbaggery. Yet, I can see a downfall in that. Someone who is so focused on killing that person that just killed them may likely fail to see other things going on around them and be killed again. This is one mod I’m likely to stay away from. It will be one of the last mods I choose during reenlistment. It’s rare when I deliberately want to seek out someone for revenge. It happens, but I know it takes my concentration out of the whole game and hurts the team.

Armor: Another good looking set of armor…oh but wait for it…the helmet. Sigh. Why did we lose large visors? I can easily see where this helmet could have had a much larger visor.

I give you two examples. One with more visor, the other with even more visor…

In my own humble opinion, either of those two make for a better looking helmet. I mean really, how the hell are these spartans supposed to see during combat? You can’t rely on armor alone. You need to use those military skills you’ve trained for all your life. Much of that includes actual vision…LOL.

Emblems: “Nick Eared Fox” is cool. I really like the “Triangle Eyes of Terror” Wait what? who writes this stuff? Oh me, okay never mind.