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...
Ammo Popping out of Wall
Level: Pillar of Autumn
On the Pillar of Autumn, when you go out in the open to fight all the brutes in the drop ships there is a little structure (the one with the stairs leading up to the roof and the room with the ammo in it) in the middle of the playing field. If you go to the left side of that structure and melee the wall, a crate of ammo pops out, full of DMR and Shotty ammo.