![Rainbow Six Siege on Twitter: "Get ready to take off with Operation Grim Sky and take a closer look at the new and improved Hereford Base. You can learn more about the Rainbow Six Siege on Twitter: "Get ready to take off with Operation Grim Sky and take a closer look at the new and improved Hereford Base. You can learn more about the](https://pbs.twimg.com/media/Dka9X2iXgAAVXQh.jpg)
Rainbow Six Siege on Twitter: "Get ready to take off with Operation Grim Sky and take a closer look at the new and improved Hereford Base. You can learn more about the
![Rainbow Six Siege on Twitter: "Hereford Base has a new look. Check out some of the concept art that went into re-designing Hereford Base, and read about the rework in our blog: Rainbow Six Siege on Twitter: "Hereford Base has a new look. Check out some of the concept art that went into re-designing Hereford Base, and read about the rework in our blog:](https://pbs.twimg.com/media/DkVKkgjXcAA7IF2.jpg)
Rainbow Six Siege on Twitter: "Hereford Base has a new look. Check out some of the concept art that went into re-designing Hereford Base, and read about the rework in our blog:
![Rainbow Six Siege on Twitter: "Get ready to take off with Operation Grim Sky and take a closer look at the new and improved Hereford Base. You can learn more about the Rainbow Six Siege on Twitter: "Get ready to take off with Operation Grim Sky and take a closer look at the new and improved Hereford Base. You can learn more about the](https://pbs.twimg.com/media/Dka9WklX4AAfRDG.jpg)