The historical refight. In some scenarios you are actually re-fighting a historical battle. In this case it is likely that the battlefield will already be mapped out for you. For a historical refight all you need to do is use your own collection of terrain to represent the historical battlefield as closely as possible.
Setting Up Terrain - Method 3
Source: 3rd-A-Palooza (3.5) Rulebook v1.4, p. 54