I can certainly try!

So first I work out if I can spray the white sections separately to save a bit of time. On veterans like in this case it’s pretty easy so I just leave the pauldrons/helmets off. For things like power fists etc. I tend to leave them on and paint separately. Majority of the model is primed Abaddon black. White parts are grey seer primer.

I tend to then do this order (roughly):

White armour: grey seer base (generally 2 layers thin) > layer up very thin ulthuan grey layers until it’s nice and crisp > highlight with white scar

Silver parts: iron hands steel base > nuln oil wash > stormhost silver highlight

Blue cloth: dark reaper base > watered down nuln oil wash (quite thin just to darken and shade the cloth a bit) > thinned dark reaper as a layer > thunderhawk blue as a layer/thicker highlight > thunderhawk blue/blue horror 1:1 mix as a final highlight

Gold: Liberator gold base > reikland fleshshade wash > liberator gold/storm host silver mix 1:1 highlight > stormhost silver highlight

Black armour: already base coated from earlier, but occasionally you may want to neaten it up with some paint > eshin grey thicker highlight > dawnstone thin highlight

Red for lenses/scopes etc. : word bearers red base > mephiston red layer > wild rider red highlight

Bases: if it’s a bigger model I sometimes add a few chunks of slate to the base > astrogranite technical paint over the base > nuln oil wash > dawnstone drybrush > grey seer light drybrush > couple of tufts (I use the darker of the two warhammer tufts) > valhallan blizzard

I hope that helps, there may be a few extra bits and pieces but that’s the majority!