For UE5, maybe a system for combat that you can shoot specific mob limbs off to make them deal less damage to the player. Example: Shooting a drone's laser arm, damaging it and making it attack less often/deal less damage. Also, maybe in addition to that, if you destroy a mob's limb, it forces it to use it's secondary attack. Same example: If you shoot the drone's laser arm a lot and destroy it, it forces the drone to get up close and melee you. This would heavily reward active play and make combat way more engaging and fun.