Always Loot Downed Arsenals
Customization is the bread and butter of Daemon X Machina, and you’ll obviously want as many options as possible.
Because of this, you should always always search every single enemy Arsenal that you shoot down, as each one can give you a valuable new weapon or piece of armor.
Downed enemy Arsenals appear on your map as a red triangle icon with an exclamation point, and all you need to do is walk up to it and press A, then pick which one you want.
This is the main way of getting new weapons, and if you’re searching each one it keeps a nice loop of Arsenal improvement.
Additionally, if you find yourself running out of ammo during a mission you can eject your current weapon and instantly pick up a weapon from an enemy Arsenal and use it.