With a couple arctic troops on my Sigma 6 team they needed someone to fight so I went back to an old classic, the Snow Serpent and here's the result.

Base Figure: Arctic Duke w/ Snake-Eyes v.1 head
Accessories: Arctic Duke mask, skis / cast Tunnel Rat v.1 rifle / custom webgear

I had a difficult time trying to figure this one out.  I knew what I wanted but it took some time getting there.  The first thing I did was boil and pop the Duke head off and replace it with the Snake-Eyes head, which is becoming my default Cobra trooper head.  Then I gave it some light gray accents to cover the black parts of the body and to give it a more snowsuit look.  I added some faux fur to the legs and arms, a nice Snow Serpent symbol to the shoulder and a custom webgear rig and he's all set.

Code Name: Snow Serpents
Cold Weather Troops

Primary Military Specialty: Arctic Operations
Secondary Military Specialty: Infantry

Snow Serpents are a specialized division of the Cobra EELs.  These troops must first pass all of the qualifications to become an EEL then endure six months of cold weather training including survival training above the Arctic circle as well as mountain climbing and further demolitions training.  Also they must become paratrooper qualified since the areas where they operate aren't easily accessible except from the air.  Snow Serpents wear a specialized version of the EEL wetsuit that is designed for arctic operations however the final course of their training requires them to survive 36 hours in the snow with minimal survival gear.  Those that pass this final test are inducted into the elite Snow Serpent squads and dispatched to defend Cobras Arctic operations.

Frostbite: "These guys are the meanest, craziest soldiers I've ever encountered.  They have to be to volunteer for the training they go through and then end up stationed in the coldest, harshest environment on the planet.  I respect these guys.  I still have to take 'em down but I respect 'em nonetheless."