I've been on every forum I could find for the stuttering issue, and even searched Youtube posts.
It seems like AMD users can fix their issue, if they have one at all, with small fixes like setting GPU buffered frames to 1. Most people seem to be Nividia users, like me that have tried many things, and simply cannot get rid of the stutter.
It does not stutter at all when the camera flies around when you take a radio tower, or when the view pans during a cutscene... only when you move your view/aim. Same exact stutter looking at the ground and some grass while slowly moving your aim, as you get looking at highly complex areas full of vegetation and buildings while you are sprinting and looking around.
Frame rates do not dip at all when it stutters; after setting maxFPS to 30, I never see it drop at all. Get the same exact thing regardless of settings - Ultra runs exactly the same as Low.
I've tried :
Ultra to low and all combinations in between.
Vsync settings in-game, and adaptive in the Nvidia control panel
Triple buffering on/off in the Nvidia panel
Combinations of all the other video options (AA, Vegetation settings, etc)
Editing the config file to limit frames
Different resolutions
Setting max frames to my monitors refresh rate
Running windowed vs fullscreen
DX9 and DX11 (no stutter difference at all)
Disabling Steam/Uplay overlays
how far are you into the game?