Why is every one complaing about the weapons?

Ok I gotta ask
why is every one complaining about the weapons
The dmr I understand
But every thing else seem so off

Certain weapons are over powered.
Certain weapons are underpowered.
Yadayadayada, welcome to a video game forum.

In Halo 3.
Mauler was considered a power weapon
In halo 4.
Boltshot is stronger than a mauler, yet it’s your starting weapon.