Some ideas for AI behaviours to make the AI feel smarter.
1.AI with smgs will fire his gun rapidly while walking to a near target. It will make an AI with smg in close range more dangerous. The moving while shooting makes it harder to hit it.
2.AI with mgs will fire rapidly to near targets but without walking/moving.
3.AI with bolt action rifle will run away for an ammount of time if there is more than 4 enemies nearby.
4.AI with bolt action rifle will shoot near targets while walking/moving (to make it harder to hit). If more than 4 enemies nearby (number 3).
5.AI will stay crouching or proning (when implemmented) if their hp is low.