Do not underestimate skilled, but weak melee fighters. Many of the lighter melee weapons inflict damage based rather on Melee, Reactions or Throwing than Strength, and they're much less tiring to use (melee weapon's swing Energy cost equals 2/3rds of its Weight, rounded down). High Reactions will allow for a frontal charge without being shot at. Thus speed sometimes wins over sheer strength (but having both is the best).