(1) Look if I can find it on phab.
(2) My worry is that if the kush player captures a civic building without trainer ability, the reduction of batch modifier causes error. So we need to check if this is the case.
(3)[Solved, I tested it and it worked] I did not test it in A26, so I am not sure if it works at all. The batchtimemodifier moved from the <Productionqueue></ProductionQueue> element to the <trainer></trainer> element