Don't feel too bad. There have been whole threads on things like "Your Stupidest Death", with most of us contributing one thing or another.
If you're bound and determined to do it yourself, here's a helpful and realistic tool that leaves Map Contact Updates on but gives you a more lifelike view of what's happening around you. Observer's Assisted Plotting Mod makes a huge difference.
http://www.bts-mods.com/?page=sh3user=sailorsteve
Oh, and just FYI, it's "Court-
Martial".