Hi, @KorayK!
If you have passed the certification of the same level of other vendors and want to pass Huawei's HCIP certification, you only need to pass the HCIP-R&S (fast track) exam instead of the three HCIP exams. In addition, the HCIP-R&S (fast track) certificate is the same as the HCIP-R&S certificate.
Hope it helps!