I use tactical and strategy as two different meanings. Sure in a technically sense they're the exact same meaning, but I think of them as different types.

Ogre Battle has static character abilities. It's all about setting them up a certain way. I basically think of this type of game as strategy gameplay. Similar to games such as Warcraft, Age of Empires, Command and Conquer, Advance Wars, Romance of the Three Kingdoms, etc.

Games like Shining Force, Tactics Ogre, Final Fantasy Tactics, Vandal Hearts, etc, all have a choice between attacks and abilities. So I use the term tactical.

Pretty much the exact same meaning, but it does differentiate the type of gameplay.