I notice in the East coast chase 1 that the two leading speedruns catch up to the AI before it crash into the tree in the end which seems to be impossible in the current build of the game. There for it's impossible to match that time.

I think either everyone needs to run the same version or there needs to be an individual leaderboard for each version of the game. Thoughts?

I think categorizing runs after version is a good idea, but i dont know how to change the game version.

The current build of the game seems to have some issues with the AI in the scenarios that include it, so you're correct that some of the runs aren't the same as they were before. Behavior such as starting early, starting late, choosing sub-optimal pathing, etc that affect the overall consistency of speed-running these scenarios. It also affects how we verify some AI runs, as they'll be rejected if the AI behaves in such a way as previously stated. Some of the scenarios, such as Bank Robbery, the speedrunning still seemed to be competitive. Of course, for the scenario mentioned prior, this doesn't seem to be the case.

The version of the game where this behavior seemed to start was v0.17 after some major traffic AI overhauls, and has persisted through the hotfixes of v0.17/v0.18 as well until the current version(v0.18.4.1 as of 2/22/20). I had hoped that these behaviors would be fixed, but it's been awhile and it seems like we'll have to amend the leaderboards.

A solution to this would be to remove any of the AI-dependent scenario runs that were ran before these versions and keep a close eye on future AI behaviors in case they either revert to previous behavior or otherwise change in upcoming versions of the game.

Let me know below if you have any questions or concerns, since those changes to the leaderboard won't be immediate.

Support. I noticed the entire Destroy the Moonhawk leaderboard is impossible to beat in the current version since the map is laid out differently.

Destroy the Moonhawk did have some curbing added between the entrances/exits to the gas station with the East Coast redesign. But more importantly, it seems that the AI is always turning left to leave the gas station now rather than left/right depending on where the player is. It also seems to leave from the gas station more consistently without spinning out at times like how it used to. It takes a lot of the variability out of the runs, which would make the other runs currently listed obsolete.

So noting those changes to that scenario, all of the old runs for Destroy The Moonhawk prior to v0.18.4(current version) are going to be removed.

EDIT: Also, I'm currently working through some of the older AI dependent runs to see if they're able to be done or not in the current version of the game. Delivery Truck Takedown, for one, has had the old runs removed since the truck AI does not seem to care if the player gets in front of it anymore.