The most basic move any model or unit can make is to move forward a number of inches up to its Movement characteristic, as shown in Fig 123.1. If there is more than one Movement characteristic within a unit, the entire unit moves at the rate of the slowest model.
Units arrayed in rank and file are cumbersome, and find it hard to change direction. Models (and units) must move forward in a straight line, unless performing a manoeuvre.