This map is a mini-game invasion based around Warcraft's Dark Portal. The Infected attack through the center portal, or come though the sides of the map (based off where they spawn) and the survivors need to hold other off using any means necessary. It has not been fully play tested, but I feel it should play well enough for some enjoyable moments!
Also a story will go along with it...

Part 1: The Invasion
The Burning Legion has returned to Azeroth and is using the Dark Portal for their doorway. Luckily for the citizens of Azeroth, they got to the defences quickly and were able to hold off their initial assault. With the casualties being too high they set out for the bravest heroes they could find to hold off any remaining assaults.
As they continue to hold off the Legion, they realize the dead are rising back to life and their fortress is breached through the cells underneath. The Scourge has also been called upon and is fighting with the Legion. As the battles rage on they have no choice but to call for Illidan Stormrage to fight with them for as long as possible, with him there they manage to capture dozens of demons including an officer named Vorthos. However with his capture, the Legion sends in their most feared demons to wipe out any remaining heroes and attempt to rescue Vorthos...

Part 2 Coming soon...