Nice gameplay. A few comments though.
The KAP-40 is really good and is basically g18 with less recoil and akimbo on it great too. I think you are discouraging people from using it because you know it has potential to be over used lol. B2R is great for accuracy up close. KAP40 is great ton compliment semi auto or burst class for close quarters.
Score streaks aren't "over" powered because they aren't easy to get and are avoidable with Cold Blooded or Blind Eye. And technically since playing more objectives and taking down enemy UAVs can make getting them easier. So people are more likely to play the object which is good and what people complain about people not doing. Them being overpowered is good when you're using them. Look at it that way. Most players aren't getting higher than Hellstorm anyway.
Guns are pretty good I just wish they were stronger at taking out multiple enemies. IW guns are generally more powerful though.
Play in a party man. You seem to be a good player but lone wolf can improve your kdr, and spm but your wins will go down. Honestly 1/5 of your kdr usually comes from streaks anyway.
Hellstorm, Lightning Strike and Dragonfire(when it works) nets an extra 7+ kills. Stealth Chopper, Orbital VSAT and Lodestar rapes too.