Forum:Is it just me or does there seem to be a class of "white weapons"

i noticed that several weapons from different weapon classes had similar appearances then i noticed the fact that all of the "white weapons" have different uses than most weapons of their class (Ex. most heavy pistols do high damage immediately but the scorpion shoots grenades that have a delay between the impact and the explosion)

the following are "white weapons" that i have noticed:

Disciple shotgun Scorpion heavy pistol Raptor sniper rifle (while not pure white like the rest) the Hornet submachine gun