Ranking doesn't seem to take damage done into account? As a primarily duo (sometimes squad) player, this is very frustrating. The amount of times that I have x kills with 200-300+ damage worth of kills will be irrelevant?
Edit: I agree with what /u/howlingananas said below. ADR is a better indicator of skill VS. KDA. This system doesn't reflect that public opinion.
Edit2: After thinking about this more, the best way to rank up would to play as safe as possible, and wait for people to fight to steal their knocks for kills. That is absolutely stupid and should not be an incentive to rank up easily.