All i can do is look at it like this.....
The zombie shield can smash zb. And it also protects your backside.
The turbine opens doors. And it also helps create teleported and powers the trap and turrent .
As for the turrent and zb trap....what other uses do they have?
Even the jet gun for that matter.
Jimmy z also said the key is commitment. We shouldn't be waiting for one of the millions of players in the world to solve it, we can't be thinking like 12 year olds. Grown men made this game. Not mention that the mythology of zombies is all based on real events and locations. Don't be so passive. I don't care what you say...tranzit isn't finished and we don't have to wait for dlc to complete the mission.