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7.62x54mmR API (7BZ3) incendiary effect underperforms in some cases
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Description

Game Version number: 1.4.0.29
Modded?: No

Issue Description:

As I understand, 7BZ3 7.62x54mmR API rounds should have a higher incendiary effect (CollisionTriggerComponent > Projectile Effects has incendiary damage at 3) than 7T2 7.62x54mmR tracers (ShellMoveComponent > Projectile Effects has incendiary damage at 1). Despite this, 7BZ3 does less incendiary damage in some cases, like shooting helicopter fuel tanks.

Details

Severity
Minor
Resolution
Open
Reproducibility
Always
Operating System
Linux x64
Category
General
Steps To Reproduce
  1. Start a new single player game master match.
  2. Place a Soviet weapon arsenal and any player character.
  3. Place an Mi-8.
  4. Take control of player character.
  5. From the arsenal, grab an SVD and magazines loaded with tracers.
  6. Equip SVD and reload it with tracer rounds.
  7. Fire one round away from the Mi-8, so as to remove the chambered round.
  8. Fire at the Mi-8 fuel tank until a fire is set.
  9. Return to game master, extinguish fire and repair Mi-8 .
  10. Repeat steps 4-8, substituting tracer magazines with API magazines. Note that the fire consistently takes longer to start.
Additional Information

This can also be reproduced with UH-1H helicopters, at least.

On the other hand, the results line up with the expected damage values when shooting at some targets. For example, reproducing this by shooting the fuel tank on the American M923A1 transport truck results in a fire starting significantly faster with API rounds than tracers.

Event Timeline

HER0 created this task.Sun, Jun 1, 7:52 PM
HER0 added a comment.Mon, Jun 2, 7:03 PM

It does seem like it could be related. At the same time, I am very certain I tested this in some 1.3.x version and API was still better at setting helicopter fuel tanks on fire than tracers.

Geez changed the task status from New to Awaiting internal Testing.Tue, Jun 3, 10:48 AM
lwing added a subscriber: lwing.Wed, Jun 4, 12:30 AM
Geez closed this task as Resolved.Wed, Jun 4, 11:20 AM
Geez claimed this task.
Geez added a subscriber: Geez.

Hello.
According to the dev team, the API rounds are triggering incendiary effects once, while tracers are doing it every hit. As Designed.
Regards,
Geez

Are you confirming that it is intentional that tracers ignite fires easier than API in some cases? To the layman (me) this doesn't make sense. I don't have experience with real API rounds, but is this a more accurate behaviour?

lwing added a comment.EditedWed, Jun 11, 11:50 AM

@stenny833 I have no input on the matter but have noticed one of the differences is that API will flame a vehicle in the same amount of rounds regardless of where you hit it on the body. Tracer requires rounds to hit a fuel tank object inside of the model.

Attached are 2 videos, one of SVD flaming huey by shooting skid. 2nd vid is .50cal API side by side, left side is shooting nose skin of huey, right side is shooting middle area where module is -- both ignite at the same time.

@lwing Interesting. If this intended behaviour, its a pretty big downturn in realism for reforger. Unfortunate