Not sure if anyone else is have juddering of stuttering Pc issues ?? Does happen a lot ? But when it does !! Shows up as a juddering mess for a few seconds. And then clears
ive played through the whole campaign and most totally fine 
.
ive also had 1 total system crash which I had to do a tor restart of the system
my system is well above minimum specs and all drivers are upto date.
my system
intel i7 5930k @ 4.2ghz
16gb ddr4 quad channel
gigabyte gtx 980ti g1 gaming (overclocked)
1tb sshd
250gb ssd