The following files have been saved with mip maps
map_adv02_dun_sundered_splitpaw_2.dds
map_adv02_dun_sundered_splitpaw_hub.dds
map_adv03_mystic_lake.dds
map_adv03_village.dds
map_exp01_maj_dul.dds
map_exp01_pillars_of_flames.dds
map_exp01_sinking_sands.dds
map_nektulos_mini03.dds
I've opened each of them up, and resaved without the mip maps. It lowers their file size by as much as 50%.