[shoo]

Consider the scenario of doing "select all; move over there past a bunch of obstacles and choke points" for 300 tanks.

if you're not playing a starcraft , you probably want them to trundle in the right direction and avoid ending up in a huge traffic jam.

if you are playing a starcraft , bad pathfinding is an opportunity for a skilled operator to worsen their RSI while lovingly micromanaging each tank's route