I can chime in on the skill points. I assume it works the same in KA as it does in mw. When applying skill points to attack/ defense, it does help. Say you have 40 attack skill points going up against someone with 30 defense skill points. Even if there actual stats are higher than yours, that extra skill points you have somehow multiplies your chances of coming out of that attack successfully. Same when defending. It does help because I've put a lot in defense skill points and have won against attacks of people with much higher attack to my defense thanks to the skill points.
I'm a bit late on this( realized I read it on like th first page,lol. ) just checking yours out bron . Last time I suggested CC forum members to help each other,they wanted to shoot me and make me beg for mercy,lol..