Shawn is higher ACS than nature even though nature has 20 more kills and 3 more assists
He mustve had a lot of multi kill rounds
Multikill rounds give more acs than being consistant
Ex. Lets say two players go 8-8 in 8 rounds
The person with 2, 4k rounds is going to have a higher acs than the person getting one kill every round
I believe its because they have more impact, and ACS is more similar to an impact rating
Here's a long article
With every additional kill you get in a round you get bonus points for getting that kill
Shawn got 14 rounds with 2k's and with consistent multikill rounds comes higher ACS
It also matters when the Kills are gotten. First bloods are always worth more than the last kill of the round.
First kill is worth 150 and every kill after that is worth 20 CS less than the kill prior
In short: Multikills and Early round kills > being consistent