@CrutchCricket and @Swobyj -- You two are reasonable; however, I suppose at this point I should emphasize that I was referring to a diss of a particular line of dialogue from ME3, if I didn't already make that clear one or two times already. Perhaps "diss" has too negative a connotation? Making fun of "we fight, or we die" doesn't mean that it was a total diss of Bioware or ME3, I agree. I used "diss" because it was a short word that fit into a title dominated by another game's name and because it was a funny (and humorous) thing for another game to do. It may even be more humorous than critical, yes. But I'd say that it did use the ME3 line in a slightly critical way by recalling it via a stupid, scared goon, while Shepard, who many of us admire, said it at a critical juncture.
Long story short, the Batman line seemed to poke fun at the ME3 line. I've never heard "we fight, or we die" anywhere else except for ME3, and nobody else has specifically cited anywhere else, either. Like KaiserShep wrote, just Google it and see what results you get--they're for ME3.
So I guess some of us will have to agree to disagree. I'm absolutely certain that it was ME3 that was referenced with that specific line, and you can feel free to disagree for whatever reason(s) you can possibly have. But I heard it, and so I reported it. End of story.