Installing mods are easy and will not break your online play. :\ Another way is to find and download the individual maps themselves with added larger navmeshes, but this will probably disable the online.
Unless you want to open a 3D editing program, grab the BF2 Editor and create 3D navmeshes for all the maps yourself (instead of using the navmeshes other people have already done for you). There is no way to open more map sizes without using a mod that utilizes these navmeshes created for the larger area maps. Автор сообщения: EmersedKrisany other ways to do this ? Bots navigate maps using 3D meshes called a 'navmesh.' The default game only came with them for the 16 player sizes, and not even all the maps.