1.

Promet's mechanism sound shader (Msbs65_01_Mechanism_SoundShader) missed \Msbs65_01_Mechanism_Metal_02 value in samples
the file is in game data, the sound is not seems to be broken so I thought is was accidentally miss

current dev	need to be

2.

Mx's mechanism sound shaders (Mx_Mechanism_Enoch_SoundShader and Mx_Silencer_Mechanism_Enoch_SoundShader) missed it's three (\Mx_Mechanism_01, \Mx_Mechanism_02 and \Mx_Mechanism_03) values in samples
the files is in game data too, the sounds is not seems to be broken too so I thought is was accidentally miss

current dev	need to be

3.

Interrior tails for MX uses shotgun samples and a hearing range is 60 meters instead of the standard 350 meters for assault rifles.
I can understand changing sound samples, maybe they sound better or have a better ~it's not that important~~ But all assault rifles in the game have a standard echo range from indoors: 350 meters; or 500 meters (like MX before Contact, Katiba and some others)
The Contact expansion didn't give us new sounds for the MX echo so the old ones are defined, all versions except for the interrior ones, for some reason they use the sound for the shotgun

current dev	for example AK-12	for example pre-Contact MX

4.

For MSBS same range issue, this is assault rifle but hearable in 60m only. Other rifles 350 or 500 meters. The shotgun sounds for the MSBS rifle shots seem intentional as there are no specially recorded for MSBS variants in the game