I don’t recall how many seconds it took me to do the training course in COD 4, I’m pretty sure it was like 20 plus seconds. I found this video on Digg.com on how to complete the training course in 13.1 seconds. He zipped through the course insanely fast. You can check out the video here. Of course all this doesn’t matter to me because I mainly play multi-player anyways.  You unlock the harder difficulty levels depending on how fast you complete this training section.  If only I had the discipline to ignore seeing my friends on xbox live playing COD4 online I might actually care. haha.