I finally acquired the two shot Gauss Rifle from a Legendary Synth Trooper, after about 100hrs+ gameplay into it. My luck is 8. : r/fo4
C-14 rifle | StarCraft Wiki | Fandom
Fallout 4: Gauss Rifle Location Guide EARLY + AMMO (Rare Secret Weapons) - YouTube
UPDATE: I upgraded my Two Shot Gauss Rifle. It should go good with my two shot plasma rifle. Is the name good? Sorry for the quality. My perks include rifleman 4. :
How to get a Gauss Rifle by throwing a grenade in Fallout 4 - YouTube