I did a little more digging and found this solution seems to clear the error. I’ve reproduced the steps belong in the event someone else experiences this.
ERROR: “Addon ‘dayz_anim’ requires addon ‘CA_Dubbing_Counterattack'”
SOLUTION:
1. Go to .Steamsteamappscommonarma 2
2. Copy the content of the ‘addons’ folder.
3. Go to .Steamsteamappscommonarma 2 operation arrowheadCommon
4. Paste and replace/merge the files.
(5. Additionally, copy the entire Addons folder into A2OA’s main folder.)
WHY: The required animations are in the ARMA 2 addon folder. Copying them over to ARMA 2: Operation Arrowhead will also add them to where DayZ can find them. Not everybody are required to do this. (Assuming they don’t have the error.)
I’m still seeing other errors, so am going to try reinstalling Day Z.