So I have been having the same issue of camera lockup. As many of you have done, I spent time disabling and enabling each mod one at a time trying to find the cause. I kept having this issue until I switched to PMOD zoom. I then played 20 or so battles without an issue. Also I might mention a friend was having this issue as well, he remembered he did not have any issues when running your 4.3.0 modpack so he installed using that. He has now played nearly 100 battles in the last few days and has not had the issue.