About 2 years ago? (I forget its date... ) , once I remodeled and released LAU-131 (US 7x 2.75" = 70mm rocket launcher) on Visuals section.
That model was named incorrect code "LAU-3" from the first, it made confusion in modding.
At that time, I had not researched historical dimension data and blueprints, photos. Only used much polygons to make better rounded tube. That made continuous errors on the model.
And at the same time, I exchanged GJE52's new LAU-131 model and texture, but I couldn't use his work on my release.
Here is completely scratch-build new LAU-131 model (in other code names, LAU-32 / LAU-68).
I merge GJE52's excellent texture and LAU-61 model (19x launcher) beautiful texture, adding more color variants (gray / green / brown).
I use historical dimension scales and blueprints, I prepare fairings (new Java code getting rid of it before firing rockets is not ready yet).