DEEJAYKEG
There is one location on the Caspian Borders map that is, to all intents and purposes, untouchable by anyone other than a pilot (and a good pilot with a very good aim, I suggest). Having been shot many times from it (on servers other than the clan's, I must add), I can tell you that it is the topmost gantry on the huge antenna at Point A, near the US spawn. Having never tried to ascend that mast, I can't say whether there is a ladder up the side or stairs within it but the brief view I have had of the view it affords (from the identification of the killing player in-game) one would be able to see pretty much the whole map from up there. Snipers have always been using the Recon class and a powerful rifle with scope. My guess is that the sniper gets there via chopper and may deploy a beacon for respawns up there.
But, surely, to make 70 kills, someone is going to have to be resupplied with ammo sometime?
It is easy to go on top there
Take a plain or shopper an jump out on top