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: 343 Guilty Spark
When you get dropped off by the Pelican, run to the front of the ship. In front of the ship you well see a rock/boulder type thing. In front of that is two trees. In front of the two trees is another rock/boulder thing. If you go to the left of the rock, and land in the water you can crouch to full submerse yourself. If you shoot upwards at the Lilly pads the bubbles you will start to loose shields and then eventually die.