PLaying COD will advance you in many areas. Play it well enough and you can go be a SEAL, SF, Ranger.
one year, i got super good at COD.
then i got an email without a sender asking if i wanted to try out for the Seal Team Six.
I said yes, and within 30 minutes, a team stormed my house, stunned me and put a bag over my head. an unknown amount of time passed, and then i learned i was in their super secret training facility.
So we began training. one by one, recruits were kicked out of the compound. some had failed the tac knife test, others were unable to pilot the killstreaks well. But i made it through.
Then, the final test. 360 ladder stall no scopes. I failed

. I took dropped from the roof, spun, and took a wild shot. I was horrified to see a neat hole just 1 inch off of the target.
So they sent me home, and that's why i play Battlefield now.