For DM here, you would want a sniper rifle, preferably the kar scoped for power, as this map is very large. The machine guns are in plain, open view, so they are not recommended. Some players would recommend the graveyard, the building with the Nazi symbol on it. It has a good view of the map, but you are almost totally exposed, save a few pillars. The broken building opposite of the graveyard has a window that gives you a good lookout, but no cover. Finally, if you spawn on the broken building on the 7th floor (it looks like a ledge when you spawn), stay up there. There is a window that gives you the best possible lookout from there, where people can only take little cover. Of course, you need a sniper, so you have little choice but to jump off if you lack one.