I strafed a train in the AVA last night and it told me that that train/convoy had no affect on anything(I forgot the particular wordage) I thought that was a pretty cool touch, don't know what possibilites it could lead to but I have some speculations. It also said that train would be down for 180 minutes(maybe only because the AVA settings) It would be nice to have the roads and railroads indicated on the maps .