From the information gathered in the article and from other comments to me the distinction seems: tactic is a granular method for a problem that does not depend

From the information gathered in the article and from other comments to me the distinction seems: tactic is a granular method for a problem that does not depend on previous tactic. Strategy is the conjuction of methods, tactics or substrategies however high-level your top-most strategy is, that depend on the previous outcome. Strategy is like markov chain where each state is a subpart of the problem, and each state transfer to other state a tactic with varying success probability. But since the exact definition is not mathematical it will always be a little ambiguous.