Best Weapon for 4th Chapter Boss?

[Alfred Kodani]

I've used a lightweight build for most of the game with minor changes to support different weapons. Most of my OS is focused on Energy weapons.

I'm decent at dodging the 4th boss's attacks, but for the life of me, he dodges almost everything I throw at him: (forward plasma missiles and laser pistols). I run out of ammo halfway through the 2nd phase.

What weapons actually seem to hit?

[Silamon]

zimmerman songbird easy mode, especially if you were already using a light mech and dodging its attacks.

[Seasoned Wanderer]

Honestly, Zimmerman and Minigun combo is what is carrying me throw all the S rank missions, if you dont like the shotgun, switch to another minigun or a laser lance.
For the back either songbirds or 2 of the weapon you get from the worm mission.
I use bipedal legs as well for dodging but if you can't get that down switch to the tank legs you can choose from the start.

[REBirthTheEdge]

Energy weapons?
Use the laser rifles or plasma rifles and plasma missile, mixed with either a laser cannon or a diffuse laser cannon when the boss is staggered.

[Aradner]

For light build hands down dual zimmermans with a melee weapon on the shoulder to switch and punish stuns. I forgot to use my 4th weapon when playing like that. I know people also find success with needle launchers, but you need to learn when to fire them. I believe some melee weapon is mandatory regardless of build for dps on stuns if you're struggling with this boss, it really speeds up the fight

[Vectimus Prime]

Actually had a hard time this one myself with quad legs. First phase wasn't too bad but the 2nd wrecked me with the up in speed. I went with a light reverse-joint build with dual zimmermans and just the basic missiles to beat it. Most of my strategy with that build was just dodging and firing a few missiles but when that brief window came where it stood still for about a second, I unloaded both zimmermans to stagger then boost kick while firing missiles then fire the zimmermans again before it starts zipping around again. maintaining mid to near close range distance till the "phoenix" moment.

[Alfred Kodani]

Originally posted by Silamon:

zimmerman songbird easy mode, especially if you were already using a light mech and dodging its attacks.

This worked.

I feel dirty...