When I play BF2, all the maps I have in singleplayer are 16. Is it possible to play a 32, and a 64 map in that too? If so, could somebody please tell me what to do/where to get the maps.
No, you are not alowed to play maps any bigger than 16 player in SP. I think that there are some mods that alow you to though... I think the mercenaries mod lets you, but I'm not sure. Cheak it out.
A way to add more bots in a map yes, theres also a way to increase the mapsize www.bf2files.com was were i found it but it may not work anymore due to patchs not sure. Also theres a way to add more AI just by editing the AI default with notepad.