[DEV THREAD] GBT 155 - Technical data and discussion

Dev Server Thread of GBT 155 self-propelled gun
This thread will be converted into a machinery of war technical discussion thread at the end of the dev server


X-Ray View

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Modifications

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Tree Placement


Bug reports

[DEV] GBT 155 and AS90 missing L15 HE Proxy Fuse shell

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Initial thoughts on its current state (02/03/2026- day 1 of dev server)

Model looks great.

the L15a2 shell is a great addition. More shell diversity in the game is splendid.

Compared to the AS90 the reload rate is too slow however im hoping the 1st stage ammo reload speed and resupply rate will make that tolerable.

The mantlet being counted at “Trunnion” is stupid, especially when its very clear where the trunnion is meant to be from the shape of the elevation drive
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Theres an L15A2 proxy report for the Type 99, we should either push it or re-report for AS90/GBT

Easier to get dev changes through reports than on the live

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Recommend re-reporting it for the AS90 and GBT, we have m107 pf so L15 pf really shouldnt affect anything other than being a nice addition to shell diversity. ill add it to the thread when its done

I’m not able to right now, nor do i have the sources

If someone could re report that’d be fab

got a link to the initial bug report? ill see what i can do

i made the report for the shell, its attached to the main post

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I put my thoughts on the RoF in my own thread

Spoiler

GBT 155 reload speed too slow?

Smins commentary on if theres an issue

but when someone tried this a few days ago

https://community.gaijin.net/issues/p/warthunder/i/SIL5JLCaMYHa

They got hit by the “not a bug, balance choice, locked” route

So if you also agree that the RoF as it currently is, is way too slow, I got no idea how we push forward with reporting that.

(for those wondering, its stock reload is 13 seconds for ready rack of 3 rounds, followed by 18 second reload, making it massively slower than pretty much any other SPG on its BR before crew deaths)

Other then that, I love the model, and was so close to preordering the vehicle however with such horrible RoF… I dont think I will.

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Its supposed to get 4 rounds of 1st stage that will be really fast. its just not modelled yet.

We will see how feedback is taken

The thing is, it had a way better setup in the dev stream, and now its this, idk, I dont trust the snail on this stuff ha.

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