Here are some good sniping spots for Call of Duty 4.
These are for overgrown:
1. in domination go to flag A and walk to the destroyed car in the ditch near the barn, keep walking in the large empty ditch all the way to the end and youll see a rock, you can jump over it and get behind it, use it to snipe at flag A and duck behind the rock. most often people come looking there for you and will not see you.
Video:
Video Jump-01-overgrow - Jump, saut, CoD4, Overgrow - Dailymotion Share Your Videos
2. again same level, overlooking flag A, go to the large building on the other side of the ditch that directly overlooks flag A, go inside and the blown out first floor, look up and youll see a second floor that you can access buy jumping on the broken remains of the window on first floor, then face toward the second floor and jump to it, you can snipe at flag A from here. its a relatively good hiding spot for sniping.
Video:
Video Jump-02-overgrow - Jump, saut, CoD4, Overgrow - Dailymotion Share Your Videos
3. Go to dumpster near the wall which helps you get to the roof of the large house overlooking flag C, once on the wall go right and get onto the scaffolding roof on top of flag A, follow it down and then you should see a white fence to the left once you reach the end of that long roof, jump on the fence, follow it and then at the end jump onto the house that the fence leads to, this house is all the way at the side of the map, you can hide there and snipe at A, in fact this is the best of all three as nobody can reach you there on the roof.
Credits to Waffen.