What is Battlefield: All in One ? Battlefield: All in One is a mod which merge Special Forces into BF2, increase bot number to 64 and adds 16,32,64 SP support for almost all maps.
to install this mod, put the "allinone" folder into your battlefield 2/mods folder and then you have to download and install the levels. the levels folder you put into the "allinone" folder, means battlefield 2/mods/allinone. thats it. IMPORTANT: READ THE READMEFILE INSIDE.