LCT G3, Only had 1 skirmish with it, then weathered.
Weathering was done with Tamiya 3000 grit sanding sheets, Not cheap, but very fine abrasive. The properties of those sheets allow the paint to be slightly polished or removed depending on the sheet wear and pressure used. https://www.emodels.co.uk/tamiya-sanding-sponge-sheet-3000-grit-87171.html