I know you asked for tutorials, but sometime you wont be able to program eveything yourself. If you need an AI solution you could use Shooter AI which handles everything for you. Also UFPS on the Asset Store supplies a really nice looking camera framework.
Shooter AI: https://www.assetstore.unity3d.com/#/content/11292
UFPS: https://www.assetstore.unity3d.com/#/content/2943
↧