Advanced unit recruitment method.
Well my suggestion is about adding a few features to unit recruitment.
First, there should be an option to automatically distribute the units among all available barracks to take the least possible amount of time. Of course this should be optional and not done unless the player chooses that certain option.
Second, there should be an option to automatically recruit the units you used last time or even better; if we can have multiple army formats which are automatically recruited when we click on them, just like the multiple war bases/ normal bases.