Activation group:

AG1 - 76mm Gun
AG2 - CIWS
AG3 - Missile(To Air)
AG4 - Missile(To Ground)
AG5 - Antisubmarine Rocket
Select "Harpoon 2" - Torpedo (Be careful not to blow yourself up!)

Control:

Roll - Turn
Trim - Turret Pitch
VTOL - Turret turn

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.

Background:

The Billow class is a high-speed frigate.
Her mission is to detect and deter enemy submarines from attacking carriers as early as possible. As such, she is the outermost ship in a carrier formation other than submarines. She can conduct ASW in conjunction with her own ASW helicopters and ASW aircraft from other ships. Or use her own ASW weapons to attack submarines and prevent them from approaching the carrier.

The Billow class has high speed and sufficient ASW firepower, but correspondingly, her anti-aircraft and anti-ship capabilities are significantly weaker than those of other ships in the fleet. There are only 36 vertical launch units and 8 anti-ship missiles. And due to anti-submarine requirements, the anti-ship missiles are generally replaced with anti-submarine missiles.

Although its anti-aircraft and ship-to-ship capabilities are weak, its cost is relatively low. A number of Billow-class in a fleet can cooperate to complete the interception of enemy missiles and reduce the pressure on fleet air defense.

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