Which actually is a real tactic, or at least similar to one. http://en.m.wikipedia.org/wiki/Defeat_in_detail The problem is that Redeployside makes that tactic so easy to execute, so difficult to counter, and so overall dominant that there is no point to doing anything else. DiD's weakness is the logistical difficulty of getting everyone together, and moving quickly enough to prevent the enemy from counter-zerging or exploiting he areas you left exposed to encircle your zerg. Being able to redeploy anywhere in 10 second nullifies DiD's weaknesses and plays wholesale to its strengths. Edit: And now you know that "defeat in detail" is basically Pentagonese for "zerging".