To save your time
GER 1914 AI from DH Full
#### Divisions etc...
infantry = 67
cavalry = 7
motorized = 0
mechanized = 0
light_armor = 0
armor = 0
paratrooper = 0
marine = 0
bergsjaeger = 0
garrison = 0
hq = 4
militia = 5
RUS 1914 AI
#### Divisions etc...
infantry = 55
cavalry = 10
motorized = 0
mechanized = 0
light_armor = 0
armor = 0
paratrooper = 0
marine = 0
bergsjaeger = 6
garrison = 2
hq = 5
militia = 0
FRA 1914 AI
#### Divisions etc...
infantry = 55
cavalry = 10
motorized = 0
mechanized = 0
light_armor = 0
armor = 0
paratrooper = 0
marine = 0
bergsjaeger = 6
garrison = 2
hq = 5
militia = 0
#######Result
As we can see, there is no problems with WWI AI from DH Full (no mods).
Thank you @Ericafaq. I'll compare the files when I get home this evening. The TGC AI files are a jumbled mess because so many different people contributed to the mod back in the day.