Squad Rico was one of the first squads that I painted for my Sin Eaters Chaos Marine army, over a decade ago. They have seen a lot of tabletop action including some 3rd Edition Space Hulk and Advanced Space Crusade. I quite like their look.
Squad Rico uses a lot fewer Chaos components than most of the other squads in the army. When assembling the force I wanted to distinguish each unit by their armour configuration as much as insignia, to aid with recognition on the tabletop. To this end Squad Rico is distinguished by the Imperial armour configuration, Imperial weaponry plus the then brand new plastic zombie heads.
Part two to follow.