Okay, I know that in the old background Space Marines used camoflage, but nowadays with the whole "holy knight" feel they tend to move away from that. However Imperial Armour shows pictures of vehicles with camoflage. So do Space Marines still use camoflage?

Then something that bugs me...look at this picture:
http://sakhet.rsc.pl/articles/283.jpg

See the Land Raider with a camoflage colourscheme...it belongs to the Red Scorpions, however...the Red Scorpions were a very anti camo chapter, refusing to fight alongside units using camo (old background)...so what's up with this camo Land Raider?