I think you have tactics and strategy backwards,
tactics:the branch of military science dealing with detailed maneuvers to achieve objectives set by strategy
strategy: the branch of military science dealing with military command and the planning and conduct of a war
Strategy is more large-scale and would be more like build orders and gathering resources as well as placing buildings and moving large groups of units. Tactics, though, are more small maneuvers that you use in the middle of battle to gain the upper hand.
The "Strategy" and "Tactic" parts of the genre names only apply to the scope of activities you are controlling. To compensate for the amount of focus put into one activity, there is varying degrees of control, from micro to macro.
A lot of focus put on battle; therefore more macro.
(Total War Series)
Focus put on economy management, town construction, and battle; therefore more micro.