Agree. It seems that the editing was lacking, with the Marcus-Dean scene in particular. Every time I thought the scene was coming a point, a justification for the many minutes dedicated to the scene, it diverged into another line of conversation. And then it only ends with him collapsing from appendicitis.

Could be worse. You could have not hated Stryper.

The bugs are not only more efficient killing machines than humans, but by all appearances, they can reproduce faster, too. When some brave soldiers capture the “brain bug” at the end, it’s a hollow triumph, because it’s a senseless war they’re biologically and militarily doomed to lose.