Hmm. At a cursory watch, I'm not seeing any large spiking coinciding with the stutters. Nothing is obviously eating up lots of CPU when it happens. Should I be monitoring the number after the semicolon, or the percentage usage? Renderer and Environment mapping tend to take up big chunks (percent) of CPU, and so do request draws.
Are the stats actually named correctly? If I'm to assume that Physical memory means RAM, then how come the game is using zero RAM? Why is everything in the page file? Why does the page file flush every 2 seconds when it exceeds 1100?
I actually think that this is related to flak lag, a problem I've had since years ago. Whenever scripted multi-part flak explodes, the game stutters and the page file partially empties. Edit: No, it's not flak. Scenes where nothing is shooting also stutter. Actually, the game stutters in every mission, not just BP.
(Oh yeah, and Win10)