After the U.S. Department of Defense conducted an analysis

To accommodate the variety of vehicles, maps in the Battlefield series can typically be tens of hectares in size, with scenarios set in open areas with small towns and military bases. In some third-party modules, maps can even be several square kilometres in size. Some Battlefield games also offer scaled-down versions of the maps, which are suitable for skirmishes with low numbers of players. The maps are not bounded by obstacles, but a map representation indicates the range in which players can move, and players who do not return within a certain time frame will be cut down to the point of death.