A target that moves in a predictable fashion will get hit more times than an equivalent target that moves erratically or otherwise unpredictably.
This applies to human players and it also applies to AI players. Sudden, significant and well-timed changes in direction can throw off players’ aim hard.
This does mean that you need to try and get into the heads, or behavioral subroutines, of your opponents.To know what is expected of you, and choose in what way you will differ from those expectations.
The more you subvert expectations, the less that you will be hit, and that can make the difference in determining who comes out on top in a fight.
An example of how dangerous predictability is would be AI players. The moment that they choose to chase you they will usually explore a predictable and linear path of pursuit. They will also hesitate to shoot when they round corners. One way that this can be exploited is to throw a grenade at the point you expect an enemy to be at when it would explode. Another way is to repeatedly and briefly break cover to poke them with munitions. One can even use a melee weapon or an emu to get in a pre-emptive strike on the AI and then backing off into cover before they react. The point here is that if unpredictability on your part can offer you an advantage then predictability on your opponent’s part can also be used to grant you an advantage.