I called the three lines
TacticalGroup=false
AvailStartDate=19420528
AvailEndDate=19451231
unnecessary and under most circumstances, they are. But if you want a certain unit or group to spawn at a certain time or when your boat gets to a certain location, those lines are necessary. You could have a DD waiting around the next point of land, that is triggered active when your submarine crosses into a MapZone you've created expressly for the purpose. The group or unit you want to have spawn like that has to be outside the "spawn" range (opinions differ between 24nm and 40km
). I usually use 32nm or 50km to be safe. Anyway, the GameEntry lines are usually quite a bit in the future, while the AvailableStart is earlier than needed... You then use a special Trigger in the ME to build the spawning... In other words, don't mistake my comment of "unnecessary" and go arbitrarily deleting lines from the files...
