Texture with Tamiya Putty. This is a fast way to texture the surface, however I prefer using Aves sculpt wet down and applied with a sponge as seen here.
I primed and painted the wheels and treads first.
1. Primed with Army Painters Gun Metal Primer.
2. Then a coat of a custom mix of Gaia Evo Primer Red with metallic powder from Mig Jimenez.
I installed the tread covers and fenders then taped them off to protect them from priming the rest of the kit..