You can show any measure in any tooltip by adding it to the Level of Detail shelf.
The easy ones are MIN and MAX.
Just create a calculated field for MIN as TOTAL(MIN([KILL])) and TOTAL(MAX([KILL])). This will create table calcs that in your setup, you can just calculate as Table (Down).
Percentiles are not supported as functions in Tableau, but there is a pretty extensive discussion posted by Richard Leeke on workarounds you can find here: