A skill based utility weapons should allow you to enage multiple targets without reloading, making the most of a magazine is part of that.
Lol who is saying that Halo 3 is ideal, lots of people enjoy Halo 3, that doesn’t make it ideal, especially when said utility weapon is handicapped by random spread and a slow TTK.
The bad weapons in Halo 3 include 4 virtually identical shallow bullet hoses(and even then they are still more potent up close when combined with a melee), the Pistol. The Carbine isn’t bad, its just redundant, its literally just another BR that are a few minor tweaks away from switching places. You see something similar happen post patch Halo 5 where the BR goes from being marginally better than the H5 Magnum, to being roundly inferior because they are the same weapon doing the same job.
So you have 4 poorly balanced weapon filling exactly 1 role, 1 redundant clone, and one underpowered Pistol(where the Sidekick and Mangler are better version of the same concept.) All of weapons could be easily fixed by having more unique designs with better balancing
The BR, Sniper, Beam, rockets, fuel rod, laser, shotgun, sword, hammer, brute shot are all fine. The Mauler is also really good I have no idea what you are talking about. Also the idea the H3 BR easily outclasses even the sniper is also laughable.
The Needler, while limited, is good within its intended range, its about as good as one can reasonably expect for a gun that aims for you.
The turrets are all fine and will outgun BRs when used properly, the plasma pistol while not lethal in its own right is exceedingly useful. The Sentinel beam doesn’t exist on any map, but if it did it still has a faster TTK than the BR. Do these weapons all get equal use compared to the BR, no, does that mean they are useless not worth picking up? Also no.
If you can’t make use out of the rest of the sandbox that is very clearly a you problem. For someone who talks up the idea of having “intimate knowledge” you don’t seem to have very much of it.
Don’t get me wrong, I still believe Halo 3’s sandbox to be deeply flawed in a number of ways, but pointing at the BR and claiming that its the sole or even a significant problem on its own is incredibly ignorant.
Complex problems require more complex solutions than “nerf BR.”