Yeah when you come out from wherever. You are on a ridge looking at the tower. You are almost eye level with one of the upper platforms. There are one or two guards along the top platform, and several more down on the snow. I used the rifle to kill off as many of the Russians as I could, then I backed up and did a running jump, grabbed hold of the platform and pulled myself up. I think another Russian came out, I killed him, picked up the guns and climbed down the ladder.
Fear is the path to the darkside.