Review for Location of Units
To show the location of a train's area, observation posts, or logistical activity, the center of the symbol also should correspond with the coordinates at which the element is located.
When space precludes the normal placement of symbols the offset technique is used for clarity. Offset staffs may be "bent" as required. The offset staff is dashed for future or proposed locations. Offset staffs extend vertically from the bottom center of the symbol, except for command posts (CPs), which is always on the left edge. The end of the offset staff indicates exact locations of CPs and aid stations and the center of mass for other units or installations.
The locations of attacking units normally are indicated by boundaries (and CP symbols, when the locations of the CPs are known) or by unit symbols.
The location of the reserve is indicated by an assembly area symbol and by a CP or unit symbol.
Reserve units of a force assigned defense position or battle position normally are shown by a line enclosing the area occupied or to be occupied--in other words, a "goose egg". These positions may be numbered or lettered for convenient reference.
Enemy symbols are shown as a diamond shape. This will help in easily identifying an enemy unit from a friendly unit on a graphical overlay.