@ToggertAKAMac good luck, the first few levels are tough when you are learning the maps. I wanted to give up on but I stuck it out and kept playing mw3 and I am getting 2.0 kd+ almost every game now.
one of the reasons for posting a lot of videos from the beginning also is to allow the people that don't have the game yet, to be able to see some good gameplay for it.
if you knife a claymore instead it does not tell the person that their equipment is gone.