Please leave your opinion for each three of them, rather after using those three, or just by hearing it.
My personal opinion is :
Ahunuld-12 - Good, but good old Remburg sound fits more to Ahnuld
Selbstadt.40 - PERFECT. I LOVE IT!!!
Crotzni - Timik gun sound was based on 550RPM, so basically sound didn’t synced to real RPM it has. I prefer the old sound to be honest, but I love how new sound shows its real 650 RPM nowadays. Feels much more like ‘SMG’, rather than carbine like it used to be.