yeah I have 0 clue how to improve my KAST, its always been shit, any tips would be great. I also dont like the idea of not filling (except intiator because I cant frag on the role so ive stopped playing that). but ive always played comfortably on sentinel, controller and duelist. I can perform on those roles so I dont think filling is bad in that aspect.
I also never run it down. I usually solo hold site or mid with an op and play retake on the other site or on attack I usually lurk with some exceptions for a mix up or if my team is usually unable to enter site or win a specific choke (such as lotus A rubble). so im not sure what gave you that impression.