JScones has cracked it!
He has deciphered the grid code in flotilla.cfg which has allowed patrol grids to be allocated to the XXI.
This uncovers new ground for SH3, ground that goes way beyond just the scope of this mod. This means that modders will finally be able to provide grids relevant to, and based on, sub type as well as the previously known variables.
I spent two months banging my head against a brick wall trying (and failing) to allocate patrol grids. JScones has finally allowed this mod to be complete.
JScones and evan82 both helped in making this mod happen. This mod belongs to them as much as to me - thank you guys.
I'm leaving it as a BETA for the time being as it still needs further testing. My next development will be changing the grids so they are relevant to a Type XXI - they are currently the same as those given to a Type IX.
BETA v1.2 is at:
http://hosted.filefront.com/WrefordBrown