I'm surprised this wasn't suggested before (from what I could see). This is probably a direct result of the salt-fest I had yesterday when I failed to enthrall some guy because he wouldn't stop screaming.
Anyway, if you're kidnapping someone and they start screaming, the typical response is to stop the screaming. You usually do this by placing something over their mouth, whether it be duct tape, or your own hands. As far as I know, there's no way to stop them from screaming other than knocking them unconscious, beating them into crit, or using a gag (and I don't think gags are that easy to get). So here's a simple solution. Aiming at the mouth or eyes with disarm/grab intent should muffle of blind the victim depending on the area. This can be resisted extremely easily unless you're cuffed, then you have to remove the cuffs first. Trying to talk, yell, or scream while muffled will result in muffled noises being sent a short distance (or over the radio if you have one). Covering the eyes gives the same effect as being blind, you can't examine things, you can only see in a one meter radius around you, etc.
Anyway, thanks for taking the time to look at this, love yall.