Originally Posted by SmokedBoo
Some of those challenges are hard for me (the kill cam with a predator, sentry gun, harrier, etc.) Because I can't keep my killstreak long enough to do it. Yes, I am that bad at this game. :/
Don't worry, you just have to find your own game style. You may not know it yet, but your speciality may be sniping, or perhaps you may be good at tactical gameplay. Mix it up, try all the guns and perks, find one that suits you best. That's what I did. When I first started, I was a mess. Literally.