How to Get the Corrupted TR2 in Rex Infernus (BO7 Zombies)

The FN FAL from Black Ops 2 returns in Black Ops 7 Zombies with Season 5 Reloaded, albeit with a new name, "the TR2". Like all previous legacy weapons, the TR2 can be acquired at random from the Mystery Box exclusively in Rex Infernus, but there's actually a quick and easy way to get a free one guaranteed, provided you know what to do. If you want to know how to get a free TR2 FAL in Rex Infernus, what it does, and how it performs in high rounds, then we've got you covered.