I hope someone comes out with some harder AI. I downloaded an "Easy/Med/Hard" pack but the AI is just terrible, I think I tried playing on Medium against 3 opponents, and it was stupid easy, I was attacked once in 30 minutes.
Other wise, it works wonderfully.....
Phucmang, Download the Beta client from Piratebay, or any other torrent site. Install the game, run the launcher, let the game update to the latest version. Download Lazy Launcher, download from torrent site of your choice, put Lazylauncher into SC2 directory (same as the .exe for the game). Lastly, download one of the AI Map Packs, follow instructions in said download, it might ask you to replace one .mpq file, or replace one folder. Replace as needed. Run Lazylauncher, select map from mappack download, launch and you should be good to go! Oh, you'll know if you have computer opponents or not as if you don't it will say "You win! Quit/Resume" right after launch.
You cannot save though as its the multiplayer beta