I have a finding. Logged into MPA, ELO 1085. Flopped around a bit, half a dozen kills on AI, no kills from them. Logged off, logged on, ELO still 1085. So-far-so-good. Logged back in again, fighting the AI until Winchester, noticed RAG's Spit14 taking some long shots on me and encouraged him to swim with the fishes. Kill to me, RAG's ELO 1236.
According to the calculator my ELO should have gone up 23 points. Logged off and back on ELO 1085. So for me at least it appears I'm only geting points subtracted on deaths but not added on kills versus human players both in the 1-on-1 queue and the FFA area versus human players. ELO dropped from 1386 to 1085 in about 2 weeks and now lower than the starting point of 1200?