I’m here to suggest the weapon spawns for CI4U. It’s mostly the same as CI5U, but slightly altered.
Chapter 1 - Ion Blaster, Neutron Gun, Lightning Fryer, Boron Railgun
Chapter 2 - Laser Cannon, Riddler
Chapter 3 - Positron Stream, Corn Shotgun
Chapter 4 - Photon Swarm, Hypergun
Chapter 5 - Vulcan Chaingun, Plasma Rifle, Utensil Poker
Chapter 9 - Absolver Beam (yes, still chapter 9)
Changes from CI5U:
Positron now spawns at Chapter 3, and Photon Swarm now spawns at Chapter 4, just like how it was in CI4.
Boron and Hypergun are now swapped. Then again, Boron was your starting weapon.
Riddler and Corn were swapped, just for the heck of it.