its basically based on the game portal,and portal 2,and the server called |HQ| Portal gave me some ideas as well.
Sorry about no screenshots but i don't want to spoil it for you guys
Link For Download:
http://www.mediafire.com/?5i9nq4li3gyqej5
*INSTRUCTIONS TO INSTALL*
1.Go to your CS:2D Folder.
2.Go to Maps folder.
3.Put the file in there.
4.Go on CS:2D
5.Click New game
6.Click maps
7. Find the map called angel_portal_v1.1
8.Play And Enjoy the map!
Thank you for reading.