1.6 isn't bad, but I have a 2 k/d and all I do is play defensive. Especially during domination I think you should stay away from rushing and get an assault rifle and just control an area of the map. This isn't camping and it really helps control the spawn in domination if you spawn trap them. Maybe get some bouncing betty's and switch to assassin pro and silenced weapons because UAV's are always up. I hope this helps and you get your K/D to what you want