'Holy fuck' is about right - the thing's a damn monster. The second one lumbering up onto the road after it is a little smaller, perhaps its offspring, but it's still a hulking beast of a thing.

"Listen. Worst comes to worse, we can outrun the damn thing, but don't shoot 'til you gotta. Plan's the same."

With a deep breath:

"Cover me."

And then, he dashes across the road into the ditch on the other side.