What really ?
Oh my god. I feel so stupid. After reading your answers, I felt so confused that I dived right into the game files (I only use 3 mods so it was quick) ... only to discover that it was HMI that introduced a very small limited number "AI-influenced weapons" (example : a pulse laser or a HAC, they just have a colour swap).
I don't know, between the colour swap and the description that reminded a lot vanilla descriptions, I was 99% sure that it came right from vanilla.
I feel so stupid. Disregard anything I said.