Mass Effect: Paragon Lost
Mass Effect: Paragon Lost: Directed by Atsushi Takeuchi. With Freddie Prinze Jr., Monica Rial, Vic Mignogna, Todd Haberkorn. Set before Mass Effect 3, James Vega and a group of soldiers try to protect a human colony from the Collectors, who wish to capture the colonists for unknown purposes.
This was released about a decade ago, so I can’t remember if I’d seen it before, and it has a sappy enough story that doesn’t affect the wider ‘Mass Effect’ universe at all. It’s still a great anime though and if you’re a ME fan, you’ll enjoy it for what it sets out to do.