Looks like there's a few on the icefall. Follow the line of garbage, then up and across the fall. The only hard part is dealing with the inverted mouse movement on the interface. Why would they do that???
1. Of the 3 mountains, look at the peak of the center one (Lhotse).
2. Below that, the right half is big chunky snow, and the left half is smooth, icey looking snow.
3. Look at the line where the smooth left half meets the chunky right half. - Halfway up that you can find CAMP 3. [You'll see little ant people marching up that centerline - follow them to their tents.]
Also once you see CAMP 3, you actually see tracks in the snow. There's a manmade line going diagonally up/left across the center mountain, up the rock face, and then continues up/left to the little snow valley where Everest hits Lhotse along the horizon line. I suppose somewhere around there is CAMP 4.