Their behavior will differ from those carrying ARs. As expected, soldiers armed with SMGs and Shotguns will prefer more closer range for combat. Particularly, AI utilizing Shotguns will attempt to close the distance to players. While doing so, they will sprint until reaching a certain minimum distance.
That will depend on the EQS's threat calculation at that moment.
This may change again with the feedback we will get
Queen's animation and behavior may change on the next patches.
Also, this one may change again with the feedback we will get