This is a guide on how to defeat and strategies for the PCA Warrant Officer in Armored Core 6 (AC6). We also provide recommended builds (equipment), so if you're having trouble defeating the PCA Warrant Officer or find it challenging, please refer to this guide.

How to Beat PCA Warrant Officer

PCA Warrant Officer Boss Recommended Build

Weapons
Right Hand	SG-027 ZIMMERMAN
Left Hand	SG-027 ZIMMERMAN
Right Shoulder	BML-G2/P05MLT-10
Left Shoulder	HI-32: BU-TT/A
Frame
Head	DF-HD-08 TIAN-QIANG
Core	VP-40S
Arms	NACHTREIHER/46E
Legs	LG-012 MELANDER C3
Inner
Booster	ALULA/21E
FCS	FC-008 TALBOT
Generator	VP-20C

Dual Shotguns Are Most Effective

We recommend you dual-wield the SG-027 Zimmerman shotgun for this battle. It excels in damage and impact as a handheld weapon that can be fired without stopping and can quickly take out weaker enemies you'll encounter along the way.

Dual Pulse Guns Are Also Recommended

Since the PCA Warrant Officer has a shield, carrying two pulse guns is also recommended. Pulse guns can make short work of the warrant officer's shield, which will stagger it and make him vulnerable to your shotgun blasts.

Be Cautious of Running Out of Ammo with Rapid-Fire Pulse Guns

Pulse guns come in two types: rapid-fire and area-of-effect. Rapid-fire pulse guns have weaker Impact damage compared to area-of-effect types, which means they require more bullets to stagger an enemy. That's why we recommend you bring along the HI-18:GU-A2 Pulse Gun, which has area-of-effect damage.

Bring a Melee Weapon As Well

Melee Weapons	Brief Description
HI-32: BU-TT/A	・Default pulse blade ・Swings fairly wide left and right, making it easy to hit enemies
Vvc-770LB	・Laser blade ・Its charged attack has a wide range
PB-033M ASHMEAD	・Pile bunker ・You won't automatically boost toward enemies when you use it, but it's very powerful
VP-67EB	・Stun baton ・Low damage, but its attacks can track enemies quite well

The PCA Warrant Officer's HC holds a shield, making it difficult to deal damage directly. But once you stagger it, it's very vulnerable to many attacks. Since it doesn't have any dedicated melee weapons and moves quite slowly, your melee weapons will have an advantage over it - especially if it's staggered.

Remember To Get the “Weapon Bays” OS Upgrade

To be able to bring along a shotgun, a melee weapon, and a pulse gun, you'll need the OS upgrade Weapon Bays so you can have one of those handheld guns on your shoulder. You can switch your weapon to it freely once it's there.

Bring Missiles Too

Since the PCA Warrant Officer will always have his shield up, we recommend bringing vertical-firing or side-firing missiles that can bypass it. The enemy will be unable to turn his shield upward to block the missiles, so it will get hit most of the time.

PCA Warrant Officer Boss Strategy

Use Target Assist To Keep Track of the Enemy

If you get a Soft Lock on the boss and press R3, you will trigger Hard Lock or Target Assist. This makes combat easier because there is no need to follow the enemy with the camera controls. However, if the enemy goes off-screen with the camera, the lock-on will be temporarily disengaged, so be sure to not fiddle with the camera controls too much during combat.

Quickly Eliminate the Weaker Enemies

In the room where you fight the PCA Warrant Officer, there are three small enemy units with him. There is a brief delay before the PCA Warrant Officer is ready to fight, so try to kill them all before it happens.

Keep Attacking To Stagger the Boss

The HC-type Execution Machine fires high-accuracy lasers while holding its shield. These laser shots are hard to avoid at mid-range, so try to always stick close and use weapons that will stagger him like pulse guns and melee weapons.

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