I'd say very quickly and how long before the spawns and patterns are predicted? I don't see why they couldn't have had players in these positions. Just have 2 classes. This is why I don't see it taking off as an eSport. Bots are predictable always have been and will for a long time. INB4 Bot camping 101 Videos.
You have to kill 20 Soldiers (possibly less, as few as 10, depending on how good you are at headshots) to match the amount of points you would get from killing 1 Pilot or Titan. Doesn't seem all that efficient, to me.