I've managed to make little progress in the map. This is a screenshot of a warehouse, which is one of the focal points of the map.
Inside this warehouse, one can find some nice sniping points. There is also a passageway to the small house that is located next to it.
Using that scaffolding you can jump to the next house. There is a wooden ladder conveniently placed there to get back in case you need to.
That house also have some nice sniping points.
And here is a very preliminar view of the house:
