Those 'big rat like creatures' in the series are supposed to be hellbugs i think, also im assuming they will add new enemys with the updates and dlc, seeing as the last update added elemental hellbugs. but its the small changes that count, the game hasnt been out for that long to be fair, i just hope that in the future there will be a big update or something with new campaign missions and new enemys because if theres no new content soon im going to start getting bored
