You all seem to think that snipers suck, think of this:
At fueldump you can own the map as axis having 4 covops, 1 fieldop, 1medic and 1 engy. This is how:
-Make 3 covops snipers with K43, not FG-42 after all I said snipers not toygunners. 
-Make 1 covop footbridge blower (with a sten)
-Make the field op and the medic a moving health and ammo cabinet.
You can keep the allies out from blowing the sewer grate for 10 mins, then you need someone to watch your back for 20.
Although I prefer sten, knife and satchel as covops, I still like sniping at some maps, like fueldump for example, but not the original way, the best thing you can do is to go by the footbridge, go to allied spawn, hide behind a cabin and snipe their backs !