For the issue raised by Zelot, how about making it so that the subdivisions of the main faction can only contribute up to 50% of the 30 hours?
This way, the main faction could not be abandoned, and abuse of official faction status could not happen. For example:
Bowex): 15 hours
ExSec): 15 hours This is fine. Both the main faction and the subdivision have put in 50% overall activity, and it adds up to 30 hours.
Bowex): 20 hours
ExSec): 10 hours This is fine. The main faction has plenty of activity.
Bowex) 10 hours
ExSec) 20 hours This is not fine. Overall the activity adds up to 30 hours, but the main faction has less than 50% of overall activity.
