[Compans]

Try this:

[FIELDS]
LowLand0 = land/summer/Compans_BoBfields_1.tga
LowLand1 = land/summer/Compans_BoBfields_2.tga
LowLand2 = land/summer/Compans_BoBfields_1.tga
LowLand3 = land/summer/Compans_BoBfields_2.tga

MidLand0 = land/summer/Compans_BoBfields_2.tga
MidLand1 = land/summer/Compans_BoBfields_2.tga
MidLand2 = land/summer/Compans_BoBfields_2.tga
MidLand3 = land/summer/Compans_BoBfields_2.tga