The highest ranking Arachnid yet discovered by the Mobile Infantry, this is certainly one big, fat, smart bug! The Brain Bug is capable of monitoring the actions of dozens of lesser Arachnids, guiding them towards the enemy while using its mighty psychic powers to crush the puny humans.
Brain Bugs act as communication and tactical centres for Arachnid hives, connected to every bug in the colony through their impressive but utterly alien telepathic mind. As well as being able to suck the brains out of any captured Mobile Infantry, Brain Bugs are able to drive Arachnid swarms forward, effectively giving them an extra action in a turn - this can be a real surprise to a Mobile Infantry defensive line!