I actually love the idea.
INFACT, let me build apon it !
We build a egg up our shaft, and then, instead of puttimg 'tewbs' all over the place, we barricade them all straight back to hell !
However, this would need many grangers (10+) to pull off. Heres a basic picture.
Plan:
However, we there is another way (50+ grangers required)
What we want to do, is make sure that all the grangers attack at once, and while the turrets are occupied, one of the grangers manages to build a hovel. Once its built, a similar attack is again launched (About 10 minutes later, once they regroup). This time, however, one of the grangers must make it into the hovel. He must come out later, when the humans are moving a their reactor. During this time, the granger is unleashed, and...uh...you know, spits and bites until the reactor (Which isnt built yet) is no more.
