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Maniphest T163708

AI won't fire at some tanks with PCML
Confirmed Internally, NormalPublic
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Description

AI won't fire at vehicles with high armor values despite having certain weapons that can damage the vehicles.
This is likely due to damageResistance config value and weapon ammo hit value affecting AI.

For example, AI with PCML will not use it to on tanks like M2A1 Slammer, T-100 Varsuk, or MBT-52 Kuma.
PCML can damage and kill those tanks.
AI has no problem using PCML on vehicles with lower armor value.

Details

Severity
Major
Resolution
Open
Reproducibility
Always
Operating System
Windows 10 x64
Category
AI Aiming / Shooting
Steps To Reproduce
  1. Place a M2A1 Slammer, T-100 Varsuk, or MBT-52 Kuma.
  2. Place enemy infantry units with PCML behind them at a reasonable distance
Additional Information

This issues also applies to any vehicle AI is facing with weapons that despite being able to damage the vehicle, but has too low of hit value for AI.

Event Timeline

pcc created this task.Mar 12 2022, 4:51 PM
pcc renamed this task from AI won't engage certain tanks with PCML to AI won't engage some tanks with PCML.
pcc updated the task description. (Show Details)Mar 12 2022, 4:54 PM
pcc renamed this task from AI won't engage some tanks with PCML to AI won't fire at some tanks with PCML.
BrythonLexi added a comment.Mar 19 2022, 7:08 AM

I can confirm this with attached scenario.
With any anti-tank weaponry (the Missile Specialist (AT) I am using does not use a PCML), the soldier refuses to engage any vehicle at 100m or 250m.
The AI is set to Open Fire (Engage at Will), and has a Destroy waypoint set on the vehicle in question.

AT_AI_Does_Not_Work.zip4 KBDownload

pcc updated the task description. (Show Details)Mar 19 2022, 3:18 PM
Tenshi changed the task status from New to Confirmed Internally.Mar 28 2022, 12:44 PM
Tenshi set Ref Ticket to Internal Ref.: AIII-55023.
Tenshi added a subscriber: Tenshi.

Thank you for reporting the problem.
I was able to confirm the issue.

GameConsumer added a subscriber: GameConsumer.Apr 5 2024, 11:16 PM

This issue is still present with 2.16.151618.

Which is unfortunate as any amount of standard "Rifleman (AT)" units are useless against even a single tank, which is not the case with AT units carrying other launchers.

This makes for example AI NATO AT capability low, as:

  • With most AT launchers:
    • AI will quickly engage any tanks they face.
  • With Titan MPRL Compact:
    • AI is hesitant to engage tanks, refusing to attack unless the tank is engaging something etc.
    • AI even with for example ~85% skill seem to get easily afraid(?) of the tank and start running and staring instead of firing their launchers.
  • With PCML:
    • AI refuses to attack tanks in all circumstances
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