Yeah. 688i, Sub Command, and Dangerous Waters all use true bearing to target and for steering. I have them all installed on my machine and I actually play them all. I really like the campagn in 688i... especially the continuous missions where it picks up where you left off on the previous mission so you really have to watch how much ammo/decoys you use. I wish this was doable in DW or Sub Command (or even in the 688i mission editor) but that's a function they seem to have left out.