hit-scan AoE has multishot issue
If you use Mausolon, or Burston incarnon, it has a primary fire that performs a hitscan + area of effect explosion. It might not be a big one but it's there. This explosion damage accounts for a significant portion of the weapon's damage ~25% for Mausolon and 50% of the damage for Burston. However, even if you have hypothetically 500% total multishot, you will see 6 damage numbers per shot composed of 5 hitscan hits and 1 AoE radial attack rather than the expected 10 total damage numbers from 5
I dont think it's intentional. When you look at the arsenal stats page, adding multishot increases the damage of the weapon for both the hitscan and the AoE portion. However in the real world testing, you get 2 hitscans but 1 explosion. You may think just like beams, the explosion does extra damage to compensate, but it does not. Meanwhile something like the laetum which is similar but has projectiles that AoE on contact, they would instead explode on each hit as intended.
As a side point,