Warsong gulch summarized:
It is found between Ashenvale and the Barrens. This is where the horde and the alliance fight over the land. Mostly orcs vs night elves. The two bases are named Silverwing Hold and Warsong Lumber Mill. The orcs wanted the land so they were choping down all the trees to build their cities. The night elves strongly disapproved of the orcs destroying their forests and that the orcs were trying to take over their land.

Facts about this battleground:
1. Two teams of 10
2. Each team's base is located at opposite ends of the map
3. Each base has multiple entrances and exits (underground tunnels, main level hallway, through the side onto the roof, etc) bases have 3 floors.
4. There is one flag that displays the team's icon located in the room in the back of the base
5. There are a few hiding spots in the general environment. More in bases.
6. The map of the battleground is huge
7. Respawn point is located outside of the base but close enough to get enemies and to run into the middle of the map
8. There are random single use buffs that once a player on either team steps on it they get the buff. The buffs are utility based (bonus healing, movement speed, bonus attack damage) last only 15 seconds.
9. once flag carrier is defeated the flag gets returned back to its original base