M. Shadows

"For main (right) and spare vocals, Lightner switched from a Shure Beta 58A to an Audio-Technica AE6100 wireless. “The A-T seems to reject a little more noise onstage and is very durable,” he says. “Nigel [Paul] previously used this mic for a few shows, and we both agreed it was a good choice."

M Shadows uses a audio technica wireless in his live setup

M shadows used a Shure beta 58a mic until he switched to an audio technica mic

As you can see in the videoM Shadow is trying to write a guitar part for their latest album.

It was said that around 2016, during production of The Stage, Sanders encountered a person known as Forest Young, who was said to be homeless but could make guitars, gave this to him so that he could use it while the band was recording the album, the article says:

In fact, Shadows says, he wound up writing much of Avenged Sevenfold’s latest album, the just-released The Stage, using Young’s guitar. “It has a great, nice, warm tone that I found pretty comforting, I guess, when I was writing.”

M Shadows has these cool shades he wears on stage.

2:12 minutes in the video, Matthew says: "We've got a little rig with pro tools over here".