There have already been a number of sc2 maphacks released.  Sadly, it seems another maphack for Starcraft 2 is now out.

We post updates on these so that users can be aware of what others are using as well as help developers work on offline SC2 tools.  Please keep in mind that using these for any purpose other than testing offline will get you banned by Blizzard (and rightfully so).

It can be downloaded here: http://www.blizzardbeta.com/files/MapHack_v10.rar

Instructions:

Press ~ (Below tab button) To view the entire map
After viewing entire map, select the player
number you are on the numkeypad to go back to your view.

All view player keys located on numkeypad

Press 1 to view player 1
Press 2 to view player 2
Press 3 to view player 3
Press 4 to view player 4
Press 5 to view player 5
Press 6 to view player 6
Press 7 to view player 7
Press 8 to view player 8