Weapon classifications...

[Nanaki]

precursor guns are laser??, but the stats kinda suggest its like a upgrade or better version of M-115 Yataghan a 4G newest heavy kinetic cannon..

They are Pulse Lasers, actually. Compare it with the Rage pulse laser sometime, and than you will realize why people love this gun so much.

Admittingly, like Alien weapons, these weapons have suffered a bit from sequel decay, since sequels have consistantly introduced newer and better weapons while they have remained mostly the same.