Where are the flash suppressors?

[Fisgas 10]

Hello everyone. I've been wondering what happened to flash suppressors. They were an announced feature for ArmA 3, as shown here: http://www.zing.cz/images/thumbnails/bigthumb/8dd520a6-43914.jpg, and there was even a video dev video last year where they were shown briefly. However they weren't introduced in the Alpha and didn't yet make it to the Beta either. I asked on the Bug Tracker about them, if they were cut from the game or were still WIP, but a mod's response was this: "They should be in. If not, flash suppressors have already been requested."

So i would like to know if anyone could tell me where i can find them, since they "should be in".