Leave the game immediately because I've never ONCE contributed to an enemy getting a score streak since I am superleet. My KD means everything to me and I will do whatever I have to protect it. Dashboarding, rage quitting, searching for noob lobbies, playing in a party and inviting a horrible randumb to be the host in hopes the skill based match making will put me in a lobby of noobs so I can feel better about myself in real life since videogames are THAT important to me.
In reality? People I've seen a K9 or Swarm called in by the enemy maybe 8-10 times out of my 7 days of playtime. Riot Shield class + Blind Eye. If the dog is going to attack you, lay prone with the shield on your back, it can't get you.
Since MW3 and all the OMGSUPERLEETMOAB tryhards I always look at the scoreboard every 30 seconds or so throughout the game if I feel the enemy might get a good streak. Then I look to see where the skulls showed up when I see that enemy in the killfeed killing a teammate. Then I make it my mission to go and take him off his little streak so he can rage quit the lobby or trash talk about how 'garbage' I am.