Different weapons deal more damage to different enemies.

[Titanica (MAGA) (MASA)]

There are three types of weapons, right? Kinetic, energy, and power. Well, in my experience, energy weapons deal more damage to Fallen, Calus automatons, Hive, Cabal, and Vex. Kinetic weapons deal more damage to Scorn and certain bosses and mini bosses. Power weapons deal the most damage over all, but normally have very limited ammo, so aren't used as often. I just thought I would throw this out there to see what other people think.

[Nibbie]

This isn't true. Elemental weapons deal more damage to shields of their element, otherwise they do slighly less damage than kinetic weapons, and that is all there is to it. There is no faction specific damage modifiers, beyond what shields they use.

[AlphaVictorKilo]

Originally posted by Titanica:

There are three types of weapons, right? Kinetic, energy, and power. Well, in my experience, energy weapons deal more damage to Fallen, Calus automatons, Hive, Cabal, and Vex. Kinetic weapons deal more damage to Scorn and certain bosses and mini bosses. Power weapons deal the most damage over all, but normally have very limited ammo, so aren't used as often. I just thought I would throw this out there to see what other people think.

Yeah this isn't true...

As another said there are a few "quirks"

Energy weapons deal more damage to shields (especially if you match the element) and then kinetic does more damage to unshielded enemies versus energy weapons

Other than that..it doesn't matter

A strident whistle will do the same damage to a taken psion as a fallen dreg, doesn't matter. The only time you'll see different values is because of the light levels, and that's it

[Titanica (MAGA) (MASA)]

Okay.

[Ixamesh]

It's "a bit" more complicated than that.
https://docs.google.com/spreadsheets/d/♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥/edit#gid=933547097

https://www.reddit.com/r/DestinyTheGame/comments/umnoex/exhaustive_breakdown_of_every_outgoing_damage/
Weapon Combatant Scaling tab
Steam breaks the link because it contains Ff*ck in the address

IIRC only Wish-Ender and Malfeasance have faction specific dmg modifiers. They deal extra dmg vs Taken, Malf also deals more dmg vs Invaders.