A conflict between Add-Ons happens when both mods affect the same file.
For example, if Add-On 1 changes the texture “BrickwallA1.VTF”, and Add-On 2 changes it as well, the game will mark this as a conflict because it doesn’t know which of the two modifications to use.
However, sometimes the edits to the conflicting file are the exact same in both mods. This typically happens when using models or sounds from other custom campaigns in your own mod: They’re completely identical, but since the game doesn’t check the contents of the files, it only checks whether the name and directory are the same and then marks the mods as conflicting.

If you have any Add-Ons that conflict with Cold Front, share them here, and I’ll try to resolve them in future updates.

Make sure to link the conflicting Add-On, so I can actually find it, and share what specific part number of Cold Front it is conflicting with, so I know which files to look at.
If you already know which file is causing the conflict, you can include that as well, but share the aforementioned information anyway.