In a game with a strong RNG luck is as important as tactical decisions, because your perfect plan can be ruined by a single dice roll.
Have u play BloodBowl? I do. And i can say even with strong RNG u have some problems only in the beginning while u learn game mechanic. Few minutes/hours and FUN is beginning RNG becomes like ocean, and u are the shark)
As a tactician u should callculate all possible results. Even criticaly bad for u. Thats the real tactic. And u are prepeared even for unlucky rolls.