It's a nuisance having to add mods to DataFiles.cfg every time after update so I propose a system which I currently use (no, DataFiles2238.cfg is not suitable for files that have to be loaded last):
DataFiles.cfg would load a blank ModFiles.cfg
include Datafiles2238.cfg
data\faction.zip
data\reloaded001.zip
data\reloaded002.zip
data\reloaded003.zip
include ModFiles.cfg
ModFiles.cfg would just be a blank file which you put your mods in (and it wouldn't be tracked by the updater):
# Paths to your favorite mods here