As his insanity worsened, Mathias had no problem disposing of any of the Solarii that fail to follow any of his orders. In-game dialogue reveals that any who disobey Mathias are executed on the spot or are left to be found and disposed of by the Oni. Lara witnessed Mathias execute one of his own men during the escape from the Solarii base when he hesitates to open fire on the bridge with cannons out of fear of hitting the other Solarii.