I am intrigued by the Warcraft map. TELL. NOW.
Ah, you wish for me to bestow upon you the knowledge dealing with what I call, The Scarlet Crusade. It is a map being developed by 3 people. Me, A friend of mine, and the Clan AFO WC3 division leader. I do the triggers, which are fairly complex, my friend does the custom scripts (e.x. having villagers have their own personality. In other words, some villagers walk around randomly, others go and work at the rock quarry, some go to the bar and get into a bar fight, etc...) and the leader is doing the story/terrain/cinematics. We also have another person, who is a professional artist I think, creating the custom picture that will show when the map starts (like vampire hunters did).
Now then, gameplaywise, the map is somewhat similar to DOTA, except a little more complex. There will be PvP combat, but the game doesn't simply revolve around that. You must also complete quests, which will move the story along. The story is still in development, so I can't say much about it. It's also not my area. I just program triggers. To be blunt, it's similar to DotA, but also quite different, and better too
You can learn more by visiting our clan's webpage and looking at the WC3 division forums:
www.clanafo.com
(sometimes the main page doesn't load if you use a different browser than IE, but we're working on it)
EDIT: I wrote up a more detailed description of my map. You may view it Here