8 hours, npc launcher pathing.
Walkers will use launch pads to pursue the player when it is roughly optimal to do so (bias toward launching). Launcher are capable of reporting back their launch path's eventual end point and the number of bounces it takes for the launched object to arrive. Periodically, walkers will look at all launchers closer to them than their goal. They will evaluate whether the number of bounces (effects time spent in air not moving) and eventual launch endpoint is faster than just running at the goal (keeping in mind that post launch the walker will be 50% faster). If a launch is preferable, the walker will move at that target instead.
These launcher calculations are only performed by enemies that are not yet empowered, to keep things calm, but also because once empowered the odds of the jump being better are pretty slim.
Fliers perform a similar set of calculations and can make use of launchers themselves.
Turrets take damage correctly. Turrets give appropriate hit reactions.
Walker spawners spawn their pick up slightly lower and walker spawner junk does not displace the pick up until the junk starts moving downward (prevents pinning objects). This results in pick ups bouncing out in a more satisfying manner instead of flying out the top for no good reason.
Projectile QA.