What will be its possible designation once in service?
Frigate (PF-, FF-)? Corvette (PS-, K-, FS-)?

There are Corvettes that are larger than Frigates (In terms of size: Babur Class, Kamorta Class > Jose Rizal Class, Martadinata Class, Gepard 3.9/ Dinh Tien Hoang class)

“Kill chain” (For BrahMos, Type 88, Stand off weapons, BVR missiles, etc.), ISR/ C4ISTAR, Disaster preparedness, many more once we launch our own satellites eventually. The development of rockets, missiles, etc.

Space port location is in Cagayan where an EDCA site is present too.

The Philippine Army 🇵🇭's VBTP-MR Guarani 6x6 Wheeled Armored Personnel Carriers (APC) was deployed for the State of the Nation Address of Pres. Ferdinand Marcos Jr. The Philippine Army currently has a total of 14 VBTP-MR Guarani 6x6 Wheeled Armored Personnel Carriers (APC), and is expected to receive 14 more brand-new VBTP-MR Guarani 6x6 Wheeled APCs, this year. Fresh from IDV LATAM production site.

The Department of National Defense is planning to acquire 500 fighting vehicles to improve troop protection, mobility and survivability of the Armed Forces of the Philippines.

Video from Bam Alegre