Actually, they have some cool ways to resolve fliers crashing and they even have one called "boots on the ground" where troops only score. There are also more ways to speed up apoc games by tweaking the rules (making D weapons more deadly to super heavies, etc.)
They are in the back of the book.
I was just busting your balls. I just started giggling when I read the "boots on the ground" rule and had to post a sarcastic comment.