hey i have been doing some searching in the ca files and i tried a couple of things to get ca rez chams working and this worked
Its very easy
You need Rez Inject for this to work
1.) Grab a RS.rez thats already modded from an older release
2.) Rename the modified RS.rez to UI_HUD_KILLCAM.rez
Start up CA, and you have chams!
EDIT by aeronyx: Here's a tutorial involving the folder method with this bypass.
https://www.mpgh.net/forum/showthread.php?t=427448