how to get the world of pane achievement.
most guides puts the link to the map in the workshop.
since thats no longer possible ill explain how to do it in this guide.

first download the map from this link[www.dropbox.com]

then if you downloaded it.
go to downloads and put it in this folder.
C:\Program Files (x86)\Steam\steamapps\common\Counter-Strike Global Offensive\csgo\maps
If you want make a backup of the map to replace it after you are done.

after that it will say replace map, replace it.

if you have done that start the game.

then open up console.
and type in this "map cs_office"

if its good it will start the map office on casual

then join CT and take a left and shoot 14 windows.

if want to open console follow these steps.

Launch CS:GO, once on the main menu.
Click Options>Game Settings>Enable Developer Console(~): SET to "YES"
Click Options>Keyboard/Mouse>UI keys>Open Console and set a key like ` or somthing else.
Click the ~ (key that you have chosen.)
Done, Console should now be open.

(the map is from valve and i put it on dropbox)