This Patching Utility by DVDRick allows allows Star Wars: Battlefront to load using Swap Magic DVD, without any additional 'CD Loaders' nor swaps necessary... will also save around 2GB on the PS2 HDD with HD Advance by downsizing the image!
On US NTSC, [SLUS 208.98] edit the SYSTEM.CNF file to read:
BOOT2 = cdrom0:\SWBFRONT.ELF;1
VER = 1.01
VMODE = NTSC