Far Cry Primal Patch Adds Expert Mode

Far Cry Primal received a day one patch alongside launch today, which adds an Expert Mode.
The patch notes from Ubisoft state that in Expert Mode, Takkar's health is halved compared to hard difficulty. The A.I.'s attack speed is increased by 1/3, enemies aren't shown on the mini-map unless tagged, and they'll will take longer to forget about you when you hide. It also reduces your aim assist, makes several weapons' aim assist box smaller, and reduces your damage.
The day one patch also incl