What happened to the Delta Force? It turned into Arknights!

While waiting for the new season to start, Han Fei played a round of Arknights and was transported to Delta Force.
Good news! You can now select three operators at once and experience the power of a three-in-one system!
Bad news, I've become Private Zero!
Not only will Haffcoin be worthless, but assets and the Secret Service will also have to start over.
Han Fei: Cricket wipes the game? What do I have to fear? Delta Force is launched!
"Swipe your card and launch a full-scale attack on the Tower of Babel!"
"Why aren't you pulling the central control gate? If you don't pull it, where am I supposed to find Zongheng?"
"What does it mean to shut down the entire ship's defense system?"
When running the knife...
Han Fei: "Let's eat an old lady first! Hey, who are you?"
Remian: "I never expected you to understand Lateran (raises M700)..."
Han Fei: "If I may ask, where did this come from? Is this still the Delta I know?!"