Different AI movement at track file replay

[Pavletto]

Sorry if already was, but i'd tried a quick search and didn't found.

I had this situation 2 times but now i have only latest case track file.

I've just successfully completed Mission 6 of Rise of Persian Lion 1 campaign. This means i had successfully shot down 2 F4's. But when i loaded a track file and started to watch i found what i shot an AIM-9 into a clear sky instead a F4. But "in real" there was a second F4 which i shot down. After what when i started rejoin to my wingman i saw a plane so close just in front of me. Next was a RWR warning and soon after what i was shot down.

Track File:

https://drive.google.com/file/d/17vQEgUqhJ3pD7JJ5sF-Ix1PmpameJD5I/view?usp=sharing

[BIGNEWY]

Hi, 

Essentially track replays replay your inputs, but AI can react differently to what is going on, and different replays of the track can have different results. 

For recording video clips or for bug reporting the best option is to keep track replays as short as possible and a mission which is a simple as possible as scripts can create problems also. 

The track replay system is very old and was initially just a tool for debug, DCS has evolved a lot in that time and we really need a new system but its going to be something for the future. 

thank you 

 

[Pavletto]

Thank you for a quick reply. Understood. Topic can be closed now.

[LouP73]

Hi, I'm still pretty new here and trying to learn.  After a mission I like to use the replay function to see what went right and wrong for me during the mission.  But when watching the replay things don't transpire as they did when I was flying.  I'll get shot when I didn't get shot in the mission, my engines will die in the replay when they ran fine for me during the whole mission (but I do become the world's most efficient glider), sometimes the enemies that I shot during the mission are not there during the replay, so it looks like I was drinking whiskey and just shooting at the empty ground space.  Is this normal for DCS?  Can it be corrected somehow?

Thanks, LouP

[rob10]

Tracks are not meant as a true replay.  They were designed as a debugging tool so they literally record inputs and "recreate" what occurred based on that.  Because of that anything that's slightly out of sync (it's only recording every x seconds, so it could miss a tiny correction) or something relied on a randomly generated event etc can throw off the replay from happened the 1st time (random event may have different outcome).  ED has said they may create a new system, but it will be need created from scratch and that's a long term goal so don't expect to see it anytime soon.

[BIGNEWY]

9 hours ago, LouP73 said:

Hi, I'm still pretty new here and trying to learn.  After a mission I like to use the replay function to see what went right and wrong for me during the mission.  But when watching the replay things don't transpire as they did when I was flying.  I'll get shot when I didn't get shot in the mission, my engines will die in the replay when they ran fine for me during the whole mission (but I do become the world's most efficient glider), sometimes the enemies that I shot during the mission are not there during the replay, so it looks like I was drinking whiskey and just shooting at the empty ground space.  Is this normal for DCS?  Can it be corrected somehow?

Thanks, LouP

Hi LouP73, 

I have merged your thread with another here, I explain a little above about the track replay system. I hope eventually we will have a better system but its something for the future. 

 

[LouP73]

OK, thanks.  Good to know and understand what's going on.

LouP

[plott1964]

On 6/5/2025 at 6:40 AM, BIGNEWY said:

Hi, 

Essentially track replays replay your inputs, but AI can react differently to what is going on, and different replays of the track can have different results. 

For recording video clips or for bug reporting the best option is to keep track replays as short as possible and a mission which is a simple as possible as scripts can create problems also. 

The track replay system is very old and was initially just a tool for debug, DCS has evolved a lot in that time and we really need a new system but its going to be something for the future. 

thank you 

 

I don't call them "problems". I call them "features".