Thanks guys.
The model came with a magazine (see link in first message)
I think it's 1/43. not sure, but it's perfect for 28mm.
I had already sprayed the model with Army Painter Anti-Shine to give it a dull look, but decided a rusty look would be more appropriate.
As said I painted everything with the Lifecolor Dust & Rust set.
https://airbrushes.com/product_info.php?products_id=2845The model was basecoated with the rust base color and then highlighted with rust light shadow 1 and afterwards light shadow 2.
Some dark spots were applied with the rust dark shadow color.
The tyres were simply drybrushed with dust type 1 (although there isn't much difference between type 1 and 2)