How to get the Halo 3 Vidmaster Challenge Annual achievement

Getting this achievement is extremely hard. You have to have lots of patience. In order to get this achievement you have to complete the last campaign mission in Halo 3 which is called Halo on Xbox Live Co op with 3 other players to have a total of 4 players in your party. What makes this achievement hard to get is the fact that you have to do the mission on Legendary difficulty which is the hardest, and on top of that you have to have the iron skull on which makes you restart from the last checkpoint when ever someone in your group dies. The fact that you have to ride ghosts at the end is not that difficult fortunately.

The trick to getting this achievement is teamwork, strategy and patience. You can not go running around without your group if you expect to get anywhere, you have to stay with your group just to survive. Also, you can not go rushing into combat with your group, you should stay back and try to take out as many enemies as possible from a distance. Finally, you have to have lots of patience in order to get this achievement, it will probably take you a long time to get this achievement. It took me 2 hours to get this achievement. Another good thing to do is to not get angry at other members in your party for messing up as it does not do any good and you probably messed up many times to.