So we are all in agreement that everyone should be shot and the robot overlords should take over?
Asimo is waiting in the wings.
And let the roaches show us who is the true master race?

Update, though not sure if this was introduced in a patch, but I found this on a walkthrough page. You don't have to play that mission, hit Esc and it allows (the only one I might add) you to select "Skip Mission". And therefore if you read Magnum's review and it didn't feel up to your stomach, whenever possible, just do that and you'll be moved on to the next campaign mission.