INSTANTLY AFTER PAYMENT YOU GET STEAM KEY FOR ACTIVATION ON STEAM!
Key can only be redeemed in these countries: Armenia, Azerbaijan, Georgia, Kyrgyzstan, Kazakhstan, Moldova, Republic of, Tajikistan, Turkmenistan, Uzbekistan, Ukraine.
Game will be forever associated with your Steam account and you can download it at any place and at any time.
EVERY COSTUMER who Leaves a positive feedback about the product will receive as a bonus an individual STEAM KEY.
A bonus steam key will be sent to your email within 48 hours.
Take to the streets for intense close quarters combat, where a team's survival depends upon securing crucial strongholds and destroying enemy supply in this multiplayer and cooperative Source Engine based experience.

INSTRUCTION FOR ACTIVATION:

1. You must download and install Steam http://steampowered.com/download/SteamInstall.msi
2. Log in to your account or register a new one.
3. Go to the "My Games" section and select "Activate via Steam ..." and enter the key received after payment.
4. After activation, the game will appear in the list of games (Library) and you can download it