The YJ-21 is a Chinese hypersonic anti-ship ballistic missile. The missile is possibly based on an export-oriented ballistic missile produced by China, named CM-401, but with more advanced features and capabilities. According to a 2023 People's Liberation Army Strategic Support Force article, the missile has a cruise speed of Mach 6, and a terminal speed of Mach 10. The missile was revealed by Chinese Navy ahead of its 73rd anniversary, launching from a universal vertical launch system of the Type 055 destroyer. An export version called YJ-21E was showcased in Airshow China 2022.

So now some things you need to know before download:
1. When adding the missile use it but the pylon to stick not on thee missile
2. When firing the missile make sure the plane of contraption you made is pointing at the ground target you selected or else it will start to oscillate because of bad making of the booster, it will stop until the booster is detached in approximately 15 seconds when arming the missile, activating 1.
3. Idk if you have something for activate 1 change everything that uses 1 in the missile it has 2 detachers on in front easily seen and one inside the booster
4. Only arm the missile when your pointing at target because you are gonna activate the booster detacher which has 15 seconds until detachment, idk how to do it when firing the missile 🥲
5. Have fun it's only 11 parts