Billow Class is a high-speed frigate.(maxspeed 48kts)
Her mission is to find and prevent enemy submarines from attacking the aircraft carrier as early as possible.Therefore,she is outermost ship of the aircraft carrier formation.
The Billow Class has high speed and sufficient anti-submarine firepower,but corresponding Yes,her air defense capabilities and anti-ship capabilities are significantly weaker than other ships in the fleet(such as Great Wall Class).

She can cooperate with her own anti-submarine helicopters and anti-submarine aircraft taking off from other ships.Or use anti-submarine weapons to attack the submarine at her own high speed to prevent the submarine from approaching the aircraft carrier.

Although its air defense capabilities and ship-to-ship capabilities are weak,its relatively low cost.There are several Billow Class in a fleet, and collectively carry out the earliest's interception of enemy missiles to reduce the pressure behind.

Control startup group:
AG1 - 76mm Gun
AG2 - CIWS
AG3 - Missile(To Air)
AG4 - Missile(To ship)
AG5 - Antisubmarine Rocket
Select Harpoon - Torpedo

(Be careful not to blow yourself up!)

note:
In order to save performance, only part of the anti-aircraft missiles is installed. You can fill it up by yourself, there will be a maximum of 36 anti-aircraft missiles

I'm not good at English,I use machine translation. If this has caused you inconvenience, I'm sorry.