Because Kill/Death ratio means absolutely nothing in my life outside of video games which is a form of entertainment. Sure, I love to do good but having fun is number 1. I had a friend who used to flip out about Kill/Death ratio but finally gave up. He still does great but when you learn to stop caring about a meaningless number that no one other than you actually looks at; you'll start having fun. Until then, continue to stress over trivial non-sense.
Experiment. All I care about is doing having fun. I often have games, that I got really into, where I have more deaths than kills, & still had a blast. Playing FFA against a talkative player who you are fighting for first place against is pretty exciting. Try going for streaks with only a semi auto pistol. I dunno.
Mess around, experiment with classes you normally wouldn't. I gave up on my K/D as soon as I started working on getting diamond camo on everything.
Things like the Assault Shield or Executioner just aren't healthy for your K/D... But they are really fun to use and give you a reason to keep playing if you are doing something like going for diamond....
Also it gives you something to claim is the reason why you have a bad K/D.
Proud Black Hat and Engineer user. I unfortunately caused several topics about nukes in Black Ops II and made mine talk about STDs. Oppsies?