I added this to my ACEO “Ideas” folder a few months ago - this would be quite the challenge to duplicate in-game!
What strikes me here is the density of stands - 13, 13, and 15 per pier, with a very small bottleneck for security. Notice also the single-width taxiways. LAX has drop-off/check-in/security/departures upstairs via elevated roadways, with arriving passengers heading downstairs to baggage claim at street-level.
Here’s a start: