ESL One New York showed an updated version of the Cache map.

Smoke does not cover the infamous connector on top. If you want to get to the boxes, you can use another smoke grenade, then hammers out the window. This will provide a good opportunity for your team to go down the underground corridor and get into the room with the windows.

Usually, when attacking point B, you should go to split. I recommend using smoke in a room with windows, as well as smoke from B-apps to the connector. Please note that counter-terrorists can stand inside the connector, and can see you if they are on the right. Consider this angle as you move forward. From point A it will be impossible to see you through the smoke.