They aren't Tier 1; this isn't special ops.
They are contractors; this is Private Military Company.

Forthcoming add-on Arma 2: Private Military Company gets loaded with an epic launch trailer, captured ingame!

They aren't Tier 1; this isn't special ops. 
They are contractors; this is Private Military Company.

Forthcoming add-on Arma 2: Private Military Company gets loaded with an epic launch trailer, captured ingame!

Marek Spanel comments: “This new trailer shows our focus on a more story and character-driven narrative for the Arma 2: PMC campaign. Our cast includes characters from various nations, which the voice acting represents; creating a very interesting blend of accents. By watching the trailer players will get a good taste of the intense atmosphere in this latest add-on.”

Arma 2: Private Military Company will be deployed exclusively for PC on 30th November 2010. It will be available for GBP 7.99/EUR 8.99/USD 9.99