Now I know how do suppressors work

In this game suppressors have the durability linked to the amount of round shots trought it, regardless of auto-fire or single-fire and also regardless of caliber.

Military suppressor have a durability of 190 rounds.

Professiola suppressor have a durability of 160 rounds.

This findings have been tested in the Shooting Range mode, with the same weapon in multiple combination of stats. Multiple guns, in different calbiers and fire-mode shared the same results.