Hmm tlw is not what it used to be...True I guess it was easy for me because i use a lot of HC'S. Rumble is just as hard if your not uses to it, it might help if you try use TLW only in cqc maps like burning shrine. If your playing a larger map where snipers rule, it gets alot harder. Also consider secondary weapons that allow you to finish up kills, i sometimes use side arms for that last shot rather than missing my last 4 TLW shots. Its funny how often i can hit 2 head shots and then miss the whole rest of my clip lol. Lastly maybe your in a funk, so it is easy to go from doing ok... too a downward spiral where you end up with less % than you started with, its maddening. Just try to have fun and not take it to seriously, because it just adds alot of pressure and can effect your gameplay. Good luck bro!