Here is an interesting comparison of Cortana over the course of the 4 halo games:
PTesh adds his dulcet prepubescent tones over the top of one of the new trailers for weapons...
Try upgrading your browser to Google chrome (you wont regret it). There is probably an IE...
Level: The Storm
On "The Storm", where you fight the scarabs, get a ghost on to the platform that is closest to the giant ship wreck. Have somebody stand on the ghost and have the ghost boost into the ship. At the last second jump off the ghost and land on the ship. As you start exploring the interior you can climb into the ship from the top and you will find a pirate poster.