I kind of understand your different request Tac, in looking for a .oba file.
I'm guessing you are looking for one, to look at, as a guide?
Well, we sort of have one now, by using the Group Field objects. You can make one yourself.
I may be going way over board by entering the following stuff, of which you probably don't want, but here it is anyway.
Place the following Country Owned Groups, 1 for each Country.
StHdq-S
StCty-S
FtAck-S
FtAmo-S
FtBar-S
FtOil-S
FTRdr-S
Place the following Field Owned Groups. Which ones you want and how many per each Country is upto you.
AFLrg-S
AFMed-S
AFSml-S
VFMed-S
portR2
portL2
CVTG1 ( remember to place the maproom Group somewhere on the terrain, away from the main battle areas. Use same Field number.)
If you want the Maprooms away from the Field like the new terrains, where they are located in the Towns, then DELETE the maproom ( mprm1 + maptbl1 ) and then add the
fldcap1 using the same Field number.
Extras: Using these will require Roads ( rail, river or road )
Country Owned Groups: Station1 + Train1
Field Owned Group:cdepot + convoy
Others can add what I missed.
Pokie