On the other hand you can be glad to have solved another mystery that may confound other GR players, too.
From now on this thread will provide the solution to these kinds of graphics-related crashes to others.
I should have picked up on those "Failed to Reset Device" messages. Indeed this pointed towards graphics issues, in this case switching back to the 640x480 menu resolution, and of course next to the usual culprit of graphics card drivers, any kind of code injection into the graphics subsystem (e.g. ReShade, ENB Series) can trigger all sorts of video-related issues.
PS: Hope we'll be seeing you around the forum again, Capt.Host. Maybe you'd like to join in on the fun when we reboot the "Ghost Recon Forever" dedicated server?