> Also, there is already a manual for everything you do in the military.

They seem to be doing great work on that front. I was favorably impressed by the documentation attached to the tools in the game.

> To convert a magnetic azimuth to a grid azimuth, add G-M angle

> To convert a grid azimuth to a magnetic azimuth, subtract G-M angle

(emphasis original, but provided by underlining instead of italics)