
If you shoot a driver in Far Cry 5 the car will crash, but in Far Cry 2 the passenger will take command.
Improved Enemy AI - In Far Cry 5, enemies will poorly attempt to avoid your car. Also in Far Cry 5 grass will not react to being driven across, but in Far Cry 2 you'll clearly see scorch marks if you drive across grass with a jeep. In Far Cry 2, shrubs will move as you move through them, individual branches can be shot off, trees can be felled, leaves can be blown off, and more. Realistic Shrubs, Trees and Grass - in Far Cry 5 shrubs and trees either won't move, or they'll just fall apart instantly. In Far Cry 2, there is a full healing animation for enemies, and more impressively enemies will not heal if in your sights and will actually carry their injured comrades to cover before they heal them. Intelligent Enemy Healing and Animation - if an enemy is injured in Far Cry 5, another will run to them and the injured one will be healed completely without fuss, and they'll gladly get themselves killed doing this. Some will even pretend to be dead, and shoot you if you get too close. In Far Cry 2 they will struggle and try to defend themselves with a pistol, or will drag themselves out of the way to slump against cover.
Dying Enemies Behave More Believably - in Far Cry 5 injured enemies fall to the ground and eventually just die. In Far Cry 2 they are more realistic, creating a flame-blast out back that can set fire to dry grass. Rocket Fire - rockets in Far Cry 5 fire cleanly with no excess heat. Fire Spread - fire spreads and covers a far wider area in Far Cry 2 and leaves trees blackened and burnt, whereas in FC5 it eventually fizzles out for no reason and trees/shrubs are mostly unharmed. In Far Cry 5, the rocket just goes straight and disappears. Rocket Physics - shooting a rocket in the air in Far Cry 2 will eventually see it fall to Earth, and if you aim right up it will hit you. Bullet Penetration - bullets go through walls and boards in Far Cry 2, they don't in Far Cry 5.
Here's the list of every shocking detail in the video that Far Cry 2 does better than Far Cry 5: