How to approximate AI complexity like in Farlight 84???

Hello, I have a question,

how can I create similar AI in complexity of depth such as the one in Farlight 84 (online battle royal game)???

Maybe my eyes are playing tricks, but from my observation:

  • AI can traverse terrain great distance to fight targets
  • AI can detect or sense events such as sound, or alert markers and move through terrain, to hunt down source, find cover
  • AI can use vehicles??? (bots)
  • AI can communicate with other AI???

I’m still studying it, the game is using 4.25 engine version…

is this do-able without a server? What AI plugins on the market place would help? Is it only C++?