Finished Metro 2033 Redux , Masterpiece. Need to ask if the kill achievements can be farmed in chapter select or not?

I got majority of achievement. I did the stealthy survival good ending playthrough so all i have left is hedge hopper , 30meter headshots, Throw knives + pneumatic + revolver + Rifle kills and 30 knockouts.

Was wondering if i could farm that in chapter select again and again or if i genuinely need to do it cleanly in 1 complete playthrough? because i am gonna do a 2nd final playthrough where where i do spartan shooty evil ending