8 hours, turret death particles.
Got the dead turret particles to a state I'm content with. When a turret runs out of health or vulnerabilities it spawns a death turret in its place. The dead turret mimics the vulnerability material, presence and position of its spawner. The dead turret drops its top into the body of the structure leaving behind a trail and pulling in energy. When this particle system becomes inactive the turret death splash activates, the turret's body is removed from the game and a pick up is spawned. The turret splash is different than a unit splash in that it is constructed around a core of larger particles distributed as to be completely opaque.
Started work on the Shooter death particles. This one shouldn't take as long as the turret where I had to figure out the tone that sets a building death apart from a unit death.