It seems that Zack Snyder's Justice League contains a small accidental reference to Halo. One of the characters present in the work, Deathstroke, in fact, it has an emblem similar to what was seen in the famous FPS saga Microsoft products on his costume, in what appears to be a veritable jumble of images taken by Google. It all started with the first promotional images of the costume of Slade “Deathstroke” Wilson. The original poster featured an emblem on Wilson's sword which appeared to be a reference to Ra's Al Ghul, a recurring villain of Batman. Joe Manganiello, who plays Wilson in Justice League, confirmed that this was an Easter Egg. The problem is that, apparently, that wouldn't be a symbol of League of Assassins, but a modified version of the Runes multiplayer emblem from the Halo series.
How did it happen? Well, if in Google Images you search for "Symbol of Ra's Al Ghul“, Custom runes are the first result. A reverse image search on that image brings back to Comics Crossroads, a fan-fiction database that hasn't been updated since 2017. The author used a photoshop-cut rune for his version of the League of Assassins and used some specifics. keywords to get a decent searchability on Google. It seems that whoever drew this part of Deathstroke's costume may have used one of the first images they found. This has gradually attracted more and more attention on Twitter. Christopher Barrett, former art director of Halo games and currently art director of Destiny, commented on this on his Twitter account:
An emblem I made twenty years ago is on Deathstroke's sword I guess? pic.twitter.com/kbVKB5KrI5
- Christopher Barrett (@cgbarrett) March 14, 2021
An emblem I made twenty years ago is on Deathstroke's sword, I guess?
In addition, the confirmation of di Manganiello has also arrived, again via Twitter:
Easter Egg found… #SnyderCut https://t.co/c5FfJSrh9Q
- JOE MANGANIELLO (@JoeManganiello) March 11, 2021
Easter egg found… #SnyderCut
Zack Snyder's Justice League will arrive on HBO Max in the United States on18 March, and on the same date it will also debut on Sky on Italian soil. The cast of the film involves Ben Affleck, Henry Cavill, Amy Adams, Gal Gadot, Ray Fisher, Jason Momoa, Ezra Miller, Willem Dafoe, Jesse Eisenberg, Jeremy Irons, Diane Lane, Connie Nielsen, JK Simmons. The script was lasted by Chris Terrio, from a story by Chris Terrio, Zack Snyder and Will Beall and based on characters from DC. The producers of the film are Charles Roven, Deborah Snyder, while the executive producers are Christopher Nolan, Emma Thomas, Wesley Coller, Jim Rowe, Curtis Kanemoto, Chris Terrio and Ben Affleck.