Nav Point
typ = 2061

A navigational help. Can be selected from anywhere on the map.

dtyp = 0..9 - for NAV A..J

Only one NAV X in each mission for each X.
For more than one Nav A, pressing "n" locks the last nav point in the file.

Mission goal Arrival at nav point should not be achieved by setting wccond[0-7] = 2. This would log the ugly message "NAV A DESTROYED".

Except for one exception nav points are always incremented by one.

