War 2.0 Weapon Changes

I just want to see unique weapons.
Every weapon should have a niche in which it should be used. Obviously, this cannot be perfect, as I doubt anyone is ever going to balance any game on their first go. But an effort to do this would be appreciated by probably everyone.
Let's look at the burst weapons.
M16 -> FAMAS -> Skullcrusher

• The FAMAS is statistically superior to the M16 in all aspects except range.
• The Skullcrusher's 3 shot kill makes the FAMAS redundant. Sure, the FAMAS has better accuracy, but let's be real. They're shooting huge snowballs. 0.2 accuracy is enough for all ranges. It also has better hipfire, fixes the FAMAS's range issue, and has a barely increased reload.

Statistically, they have a few disadvantages and advantages, but in practice, we all know which weapon is the best out of all of them.
Instead, why not try something like this? (just throwing out some ideas here)

• M16 has average damage, fast reload, great accuracy, but is limited to burst fire. Small burst delay.
• FAMAS has lower damage, slow reload, but great accuracy and highest rate of fire in its class at 1200 RPM. Of course, it's burst, and would have a longer burst delay.
• The best scenario is to see the Skullcrusher gone, but if it absolutely has to stay, it could have average damage, but good stability for range while having a low effective DPS to make it bad at CQB. This would make it great for combating snipers.

While we're at it, why not add some aesthetic changes? Let's be honest here, it's boring to listen to the weapons since most of them have the exact same sounds. There are lots of sounds in Minecraft that could be overlaid to give weapons slightly different sounds. No specific examples yet, but I know it's possible.
And reload sounds. It would be interesting to hear slight variations in reload sounds, as well as having "accurate" sounds. The current sniper sound is a bolt open/close, whether it's semi automatic or bolt action. It could be changed so auto snipers load a mag in and pull the charging handle, while bolt actions open the bolt, replace mags, and close the bolt.

Thoughts? I'm being intentionally vague here, because listing specifics would take way too long, and it's very unlikely that a significant amount of people would even look at it anyways.