for sure cc mods the game but as for ts4, cc specifically refers to stuff that utilizes existing tunings from the game while "modded content" generally refers to mods that adds their own tuning to the gamecc are mods. "custom content" is also modded content. theyre they same thing
cc does break from updates (you can find how often they do on this site
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), but it is still smart to merge cc in general, just like how Twistedmexi explained the game uses a ******* list to load them. If you have no idea how inefficient lists in this game are, recall if u experince frame drop when you use the cook menu in the game, that thing also functions by loading a list