MCH is a very unpopular job, and I think it's a fair point to consider the visuals as a part of the equation. There's a few things that feel a little disconnected with the design.

1. Most of the gun models are quite large but we're using them one-handed while this is almost never the case in real life even with the smallest firearms. Because of the fantasy setting the flimsy handling can be easily justified, we have giant swords and axes after all, but I have a feeling that people who gravitate towards gun classes despite the setting would appreciate a more realistic take on the aiming and shooting. Personally, I feel like the majority of the gun models would fit much more naturally with 2-handed animations due their sheer length, like seen with Sprint or Flamethrower.

2. While the particle and sound effects of the heated shot are satisfying, the flips feel very arbitrary. The design would be a lot more coherent with recoil effects and animations instead of the flips. Combined with the large gun models it would also seem more realistic and feel more powerful.

3. The Gauss Barrel is awful. I interact with a lot of MCHs in the community and I've not heard a single person like it. Most opt out with /gbarrel off and mine has been hidden since the command was implemented, I would almost argue that the only reason people have it visible is because they don't know about the text command. The barrel doesn't adjust to gun length and rarely matches the color or design theme of a gun model. This most definitely warrants a redesign.

4. The toolbox doesn't change with gun models. Bards get their customized quivers, why can't we? There might be lore reason for this, but I can't think of anything that wouldn't justify some customization. At least make the colors match the gun models, please! The thing only dyes if the gun is dyable so the lunchbox easily ruins otherwise nice glamour sets. There's even a mod out nowadays that specifically hides the toolbox because of this.

I don't know how the numbers look at SE's end but I'm very surprised the DRK redesign, tank balance and healers have been talked about so much when there's a much more extreme disparity with the usage of BRD and MCH. It feels like MCH has been put aside and forgotten since the early SB changes. I would urge them to take a look at all the feedback they've got about the class, since most of the threads about MCH nowadays don't even pick up any wind, people just don't care anymore since almost nobody plays the class seriously.