So I just got done playing a Left 4 Dead match on versus. The map was Blood Harvest and I'll tell you what made it amazing. I was the only one on my team against four people. Now, the first two levels started out with me on a team. However, half way through the second level (when I was survivors) my team quit. Now ordinarily you think I would be f'ed up the a. However, the other team didn't check what was going on and didn't use my shortcomings to their advantage. Where they could of simply defeated my A.I. teammates, they didn't instead, since I then became the automatic leader and my teammates would be to follow me where ever I went. Which actually ended up being the other teams downfall. As I got a 1000 point lead when I made it to the end of the third campaign. When it was my turn, they split up 3 and 1 accidentally and I knocked 3 of them down with my tank. I went after the fourth who was caught in a horde, leaving the other 3 to die. While I'm not going to state why the A.I. helped me so much, I do plan to write a sequel to my TEAMWORK means TEAMWORK posting. With details about Versus mode and how to defeat each type of zombie, whether it is common sense or not.