Arsenal - The Romanov Files Walkthrough

Walkthrough:
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Mission 1a - shoot all the bad guys. Head shots are the most effective.
Mission 1b - shoot the guy with the yellow tie
Mission 2a - shoot all the bad guys
Mission 2b - shoot the guy with the yellow tie. He will be walking on 
             the lower sidewalk
Mission 3a - Shoot all the bad guys
Mission 3b - Shoot the tire of the car and then shoot the guy that gets
             out of the car
Mission 4a - Shoot all the bad guys
Mission 4b - Shoot the fuse box. Wait for the yellow tie to come out and
             shoot him in the head
Mission 5a - Shoot all the bad guys. Due to a virus, no upgrades
Mission 5b - follow the arrows on the bullet and it will find and kill 
             the end boss