I would like to recommend a new weapon stat or some indication be marked on each weapon indicating whether or not the weapon is silenced or will make noise and attract zombies. I play with a friend who claims to have a silenced shotgun and I have no idea what he is talking about. I personally don't like Shotguns so I rarely use them and haven't gotten it leveled yet. Some of the weapons you can tell which are silenced by looking at the model and seeing a giant nozzle at the end (such as pistols and SMGs), but some like the rifles (and shotguns?!) are harder to tell. There doesn't seem to be any clear indication. Is there a list somewhere we can tell? If not, can this be added in game somehow?
I know most people are rushing through the game and mowing everything down in the easier difficulties, but in the harder difficulties it's more important to be quiet in the "quiet areas" as you can get overrun quite easily. Knowing which weapons are silent in advance is important for choosing your loadout beforehand.
Thanks for reading. Appreciate any responses on which guns (especially shotguns) can be silenced.