Board Thread:Questions and Answers/@comment-34779323-20180308185936/@comment-31540246-20180308191348

The 4 official orange fighters you can unlock by Career mode are the ones you brought up, Dodson, Sanchez, Mendes and Brown. They come random and not at a specific career box, I am not sure if you can randomly get other orange fighters during career mode but those four are the ones that I know.

You will get the standard Orange GSP at day 200 and Ronda Rousey SE at day 356 so just keep playing until you reach 200 and 356.