I played the division 2 times for today. I noticed that the mortar turret got a bug when shooting on any ground except building; the bullet went through the ground (game map).
It sometimes didn't fire or fired but underneath the map or the projectile got wrong; it went up, rebounded and blasted in the air.
here is the evidence: https://drive.google.com/file/d/15TR...ew?usp=sharing
It's one of many turrets bugs, seems ubisoft unable to fix this for year.
https://forums.ubisoft.com/showthrea...rret-Bug-(NEW)