Added 2 more players at the natural expands for ally play, and blocked off the northern/southern exit with destructible rocks to give players 3 and 4 a chance to defend themselves early game.
Like my other maps, designed to work best with StarLauncher -> http://darkblizz.org/Forum2/sc2-tools/starlauncher-v1-10-with-teamracecolor-no-modifications-to-original-maps/ - plus use this pack of AI mods with it, works just fine http://dionysus.dk/SC2/Mods.rar
Since this map is only 4 players, it might work with other launchers in addition to StarLauncher and lazylaunch2.