Nah, you did fine. As far as K/D goes, we were right beside each other on the board. I'm only a fair to middling player, and I'm okay with that. I'll never be able to dump the hours into it to get to the level of those 110 guys with custom emblems and have clan tags. When you are squad leader you should issue orders, though (point your crosshairs at an objective, hold down the comm button - R1 - and select attack/defend). It gives you and squad members extra points for following the order, no drawbacks to it.
You should try Obliteration mode, it's fun!
I didn't notice any rubberbanding in the matches I played with you guys!