I've recently gone back into the Crucible, palying the GoG version, to get the achievements, and I've noticed two odd things. The first is-- at certain times, the Augre will not activate a Garrison, no matter how many time I drop him near it, and I've dropped multiple Augres as well, to no effect. The other thing is that I am not certain what I am doing to cause an earthquake. Do ramparts in the path cause this to happen? Other times, I have not built anything recently, but an earthquake occurs, opening up a different path.