LSD spawn location was changed in the Game Update: Feb 03, 2014. Last Stand Defenders are now evenly distributed across a Building'sFootprint when that building is destroyed instead of stacked together in the exact same location. Note that this will reduce the effectiveness of Splash Damage against these units, making them appear stronger.
Spawned LSD are removed from the Base or Deposit when an Attack is Ended and will not return if subsequent Attacks are made.
If the LSD spawn within the Range of an Attacking Aircraft and that Aircraft is allowed to Auto-Target the LSD it will prioritize and fire upon the Mortar Teams over the Riflemen and Heavy Gunners. However if the LSD separate then the Auto-Tageting will select the nearest Target to the Aircraft.
During Operation: Undead Rising if a Building was destroyed by Zombies then the LSD became infected turning them into Zombies. Consequently the zombified LSD would turn on and attack the reaming Defenses and Structures of the Base.
The Specialty FAV Schematic Component : Zombifire will cause the same Zombie Effect to the LSD as seen in Operation: Undead Rising.
The Special Op : Double Agent will Flamethrowers, Suicide Bombers, Heavy Gunnersto spawn and fight for the Attacking Player. This and the aforementioned Zombie infection are the only times that the LSD are not the Normal Three Units.
Last Stand Defenders are now evenly distributed across a building's footprint when that building is destroyed instead of stacked together in the exact same location. Note that this will reduce the effectiveness of splash damage against these units, making them appear stronger.