If somebody displays tactical planning it is typically meant to demonstrate planning that was skilful and employed to enable something to be accomplished.
Very often, the word tactical is used by the military when they need to support military operations, usually those with a limited objective, for example, tactical forces may be used on the battle field or in reconnaissance with a particular outcome in sight.
The military also use the word when they are describing particular weapons. In this instance tactical weapons could be those that are useful in a particular war situation that may not be appropriate in other battle circumstances. For example, sniper weaponry may be the tactical weapons of choice in some circumstances whereas tanks would not be.
Tactical bombing is another military description: It may be tactical to bomb a railroad or a bridge so that the enemy cannot move either its armies or equipment.
Tactical can also be used in a vast array of instances, but games and sport is another area in which it is used often. This may be because both sports and wars depend upon attacks and defense moves. All sports from tennis to football have tactical maneuvers intended to make the opposing team think that they are going to do one thing while they actually perform something else altogether with the objective being winning the game.
Another arena where attack and defense are often used and so where tactical operations come into play is the huge world of politics; it would seem that the art of tactics is an innate skill that politicians must have.