That was a result of a bullet case drop mixed with the firing sound, tried some things to erase it and/or modify it, so i just made a cut there.
But looking at it right now as to not leave it with that sudden cut, i just applied the entire firing sound as it is presented in NIKKE as a fix for now.
Also, i have applied a pitch correction to the other sounds.
If i find a version of the sound without the bullet case drop or some way to muffle that without making it sound weird, i will update the addon again.

There's some sudden noise cutoff during the firing sound.

Far as i know, no. This and the other one are different addons replacing different weapon sounds, so there shouldn't be any problem.

will it conflict if i put both the awp ver as well as the military snipe ver at the same time?

Alternative version for the military sniper rifle:
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=3114979200

Just to show how it works on the base AWP, the addon should work fine in any other custom model that has no custom sound included.
If you are referring why the addon on sound on the AWP, don't worry, ill make a version for the other sniper rifles later.

why that model