Http://www.youtube.com/watch?v=6ZUmTdeaoiQ&feature=related Modern Warfare 2
http://www.youtube.com/watch?v=OyWurWoxhuA Mass effect 1
http://www.youtube.com/watch?v=itHsEbDelbQ Mass effect 2
http://www.youtube.com/watch?v=fid-r38dxrY Mass effect 3