[NO BUG] ZSU23-U accuracy reduced

I noticed after 2.5 was released the ZSU Sheilka is far less accurate than it used to be. It was similar to the performance of the gepard. Now it seems to be too slow to engage when a target is within optimal range. Is this on purpose or bug?

Shilkas will miss 99 percent of time on targets faster than 475Knots

I just came here to post a bug report about the same thing and found this post.

I was testing the ZSU-23 Shilkas and several other AAA units and found that the Shilkas and the ZU-23 units can't seem to hit targets, even if they're flying in a straight line.

I found that the Shilka can't hit targets moving in a straight line if they are faster than around 480 knots.

Here are track files showing an F-5 flying straight and level at steady speed over a gauntlet of Shilkas at roughly 550 knots:

https://www.dropbox.com/s/5t3ika40wa6wmn3/Shilka%20bugged1.trk?dl=0

https://www.dropbox.com/s/aem2oyiczbyubo8/Shilka%20bugged2.trk?dl=0

https://www.dropbox.com/s/yxh719d07heex7h/Shilka%20bugged3.trk?dl=0

The AI has trouble leading a fast target enough when the target is close or flying more or less overhead. Faster than about 475 knots, and it rarely hits due to not enough lead.

I think the shilka needs to have a longer lockon range. There may also be an issue with AAA AI logic for all units with regard to leading a moving target. AI often completely misses a non maneuvering target. When this happens, it's always because the guns aren't applying enough lead.

Testing ongoing. Will have more tracks.

Do you have a mission I could try that you are using, nothing has been changed with their accuracy that I know of.

Sure. I've put together several missions. All feature an F-5 at 100ft flying directly over Batumi runway. I have six groups of 3 AAA units each along both sides of the runway.

1. ZU-23 emplacements

2. ZU-23 trucks

3. Shilkas

Out of the above three, the ZU-23 emplacement is the most effective, followed by the ZU-23 truck, with the Shilka the least effective. The vulcan seems to be between the shilka and the zu-23 truck and the gepard seems to be better than the zu-23 emplacements.

Mission files include duplicates of the test with Vulcan, Shilka, ZU-23 emplacement, ZU-23 truck, and Gepard, all tested against the same F-5 flying straight down the runway at 550 kts, 100ft.

AAA tests Gepard Shilka ZU-23 ZU-23 Truck Vulcan.zip

For some reason, I've found that putting the units into separate groups of 3 seems to increase the number of units that fire at once.

And thank you very much for taking the time to look at this!

the zsu non radar units are more accurate and engage earlier than the zsu23-4. From what it's looking like the zsu's are not engaging fast enough and also they will not lead a target that is going faster than 500knots. The Tunguska missile tracking was also effected in 2.5. less accurate so maybe a correlation somewhere in the code.

ZU23 closed also will shoot other friendly units in its line of fire. can see it at the end of the track with the f5 buzzing the airfield.

Track file: https://www.dropbox.com/s/owawrct1iupulmm/DDCS-1972BushWar-CA-0.04_Run-20190115-190711.trk?dl=0

Unfortunately, current SAMs are bugged =(

Proximity fuses not working, SA-2 missing even subsonic straight flying targets at 10km, etc...

Shilkas were a joke forever in DCS, BMPs are better)))

thank you nineline for looking into this.