How to create a bot for a 3d game (AI)?

Question

Game development

I am only concerned about one question: "On what data should it be trained?".
Game - CS:GO.
There is the location of the allies. The bot can easily detect the enemy (instead of the head, the texture is slightly different). But he still needs to be taught how to run and buy weapons.
For example, if a grenade flies at him, he must run away from it or turn away.
I know about the genetic algorithm. But I can't imagine it in the game. HOW?
Machine learning needs data. Which ones and where can I get them?
So, there must be a gene involved. algorithms.

Answer 1

And why is there machine learning or other learning technologies at all?
Do it first without any frills on the usual logic - flowcharts, simple ifs and all that.