It would be very useful to add Effects Modifier to NPC Character Definition for NPC Character Type Mouser with an option to remove Sound Effect for Spawn (as it is already there for Guards and Wildlife). Becouse without it there is no option to disable it (or I don’t know how).
If you spawn more Mousers at the same time (which should be expected for this type of enemy), that sound effect is very disturbing becouse it is played for each of them every time. And they despawn not only after you will defeat them, but also becouse of the distance, so if you move away from them and then move closer, that sound effect playing several times in a row is disturbing to the point that I am thinking of not using Mousers at all becouse of it, or at least in some other way than I would like.