Tactical Retreats - these will take place when a unit group is in a chunk that has reached a death threshold
Unit Group Merging - if multiple unit groups retreat at the same time there is a chance the groups will merge
Unit Group Forming - any chunks with spawners in it that is covered by a pollution, player, player base, or player defense pheromone clouds will form groups based on the evolution factor
Probing Behavior Against Defenses - unit groups will attempt to avoid chunks that are soaked in death
Player Hunting - unit groups will track the player based on there emitted pheromone cloud