modder Iamashaymin claimed that footage of Star Wars: Battlefront Classic Collection that appeared in a trailer suggested that developer Aspyr was using his mod.

Following this, Apsyr released a statement claiming it had “mistakenly” used footage of this mod, and that it was a placeholder. Now, following the full release, players appear to have discovered evidence that prior to a very last-minute patch, the game shipped with the uncredited mod work.

So it looks like its some animation mod. I didn't research further just read the article. They added it back in apparently using a patch. Scum shit to sell someone's free labor to the community no matter what it is.