Na not really the only timer is the one that spawns the orcs and picks 1 of 3 random grids
As for the squads that's a pretty easy one. When you talk to the general and tell him to position a squad at a waypoint, it searches the entity list for the sergeant and his troops and tells them to MoveTo().
The squad members know which position they should stand in because there is a variable set for each of them:
a) My sergeant's mobid
b) My X row position in the squad
c) My Y column position in the squad
When the entity list is checked for any squad members that match that mobid it uses the sergeants target waypoint coord and adds the necessary difference for their row and column position and moves them to the correct location!
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