StarCraft II Launcher is a tool that let's you select a map, a modification and some player settings and it can then magically start the game with that map, modification and settings applied.
To play a map, simply download a map (it doesn't need any AI changes or stuff) from a site like starcraft-2-beta-offline-ai-maps. The Team StarCrack AI 6.1.1 is included in the package as an modification.
StarCraft II Launcher 2.3.1
StarCraft II Launcher 2.0.2
StarCraft II Launcher 2.0