The truck encyclopedia, yes. There is also wikipedia that says a LMG could be installed through the windshield by lifting it, although wikipedia says that the Type 99 LMG could be used too, and there is no mention of a pintle mount there. While the truck encyclopedia only says it could be the Type 11 or Type 96 through the windshield, and the possibility of mounting a Type 92 HMG at the rear on a pintle mount.
Other than these two websites, I haven’t found yet any other mentions of MG installation on the kurogane.
I tend to trust the truck encyclopedia more, because as I said, this website is the “trucks section” of the tanks encyclopedia that is generally quite reliable: it is often used as a source for the WT wiki articles that are checked by a moderator before being allowed to be published there. And wikipedia is, well, wikipedia, it can be right but it can also be wrong.
There is a list of links used as a source (I guess) at the bottom of the truck encyclopedia’s article, you can check them if you want, because I haven’t done it yet myself.
Infos on jeeps/light vehicles weapons are hard to find, especially the axis ones. For example, I have NEVER found a historical pic from WW2 of the kubelwagen with a pintle mounted MG. If you have one, I would be quite curious to see it. I have struggled a lot to find the video of the kubelwagen with the zwillingssockel, and I haven’t found any pics of it yet, only this short vid.
And as I said in my first post, the same thing happened to the Ho Ha halftrack in game: only a few pics of this vehicle exist, and there isn’t a single one of them where a MG is mounted on it. We only have sources that say one or several MGs could be installed, and the type of MG is different depending on the sources.
I have also thought about a few other things about the Type 11 LMG on this pintle mount, so I have other arguments about why it doesn’t make much sense, I’ll try to write it here later.