I have tested it n Creative and Survival mode.

1. Nova cannon access port does not line up with conveyor blocks placed over it
2. Nova cannon, can't load ammo manually or via conveyor blocks, the weapon inventory block turns black when trying to move ammo into it
3. Weapon does automatically load by it self, even without ammo available in Survival

4. Lemanrus Battle Cannon can't load ammo manually or via conveyor blocks, the weapon inventory block turns black when trying to move ammo into it
5. Weapon does automatically load by it self, even without ammo available in Survival
6. Weapon icon is a white block in G-menu and hotbar

7. Earthshaker cannon can't load ammo manually or via conveyor blocks, the weapon inventory block turns black when trying to move ammo into it
8. Weapon does automatically load by it self, even without ammo available in Survival

Sorry for me so pedantic, I love these mods and would really like to see them fully functional.