So I made the ACs from Armored Core 2, Nexus, AC4 and Ninebreaker

Armored Core Last Raven - PlayStation 2 : Video Games

Extensions/Shoulder Weapons, Armored Core Wiki

Nine Ball (Character) - Giant Bomb

Perspective Is Everything : r/armoredcore

Arena, Armored Core Wiki

So I made the ACs from Armored Core 2, Nexus, AC4 and Ninebreaker

Armored Core 4 Archives - The Raven Republic

GAME REVIEWS: ARMORED CORE: FOR ANSWER

Armored Core Last Raven - PlayStation 2 : Video Games

Armored Core Analogs: Energy Shields and Primal Armor - The Raven