Angel- you think Seelow is a sniper level? Try a type-100, sticky grenade and satchel charges. I nailed 5 tanks in one round last night, while spending my in-between time roaming through wheat fields with camouflague hunting would-be snipers. 27-5. And I do it consistently on that map. I think its too big for snipers-too easy to use the extra space to circle and surprise....taking away their ability to dominate the battlefield like they often did in Creek.
I can pick up 30+ kills on Seelow with the sniper rifle, easily. Circle and surprise is a valid tactic, but rendered practically ineffective when confronted with camoflage and bouncing bettys. There are a couple of spots on Seelow where you can hole yourself up, mined in. You can pick off anyone crossing the fields, and if you're going for headshots they don't have a clue where you're getting them from. Even if they do know, they come after you and run straight into a mine.
The only map that I detest on WaW in the same way that I disliked Bloc on MW, is Outskirts. There's just no consistent tactic, beyond going totally cynical, that works on that map.