I know I said I really like the New system for the signal fire, but the more I've been using it, the less useful I've found it. It costs too much for giving a random units every 3 minutes. Getting Farms seems like just a better idea.
I know that with the new system, my last idea for for the Signal Fires was impossible. So I would like to make a new suggestion.
So the Signal fire would allow you to "Train" the 4 different units. Once you click on a unit, it will have a timer for training, similar to how units from a barracks are trained, but on a loop until you deselect it. Of course, the unit will be free, take 3 minutes to Train (though this may need to be lowered a bit), and spawn once that timer is up. The units, if possible, wouldn't come out of the Signal Fire like it was a barracks, but just spawn next to it, similar to the Horses at the Dwarven Travel Camp.
Once you get the Spellbook Power for the Signal Fire, It will allow you to get 2 units at once. But let's say you click to get a new unit while the one you were already getting was halfway done training. They would both not spawn at the same time, but stick to their own timers. This would make sense because units from different parts of Gondor wouldn't get to their destination in the same amount of time, unless specifically led to do that, which they are not.
Is this possible?