For my Scouts I use modified Space Marine helmets, Cadian torsos and arms, and Catachan legs. I sculpt on details including a codpiece, blood drops on the shoulder pads, and glove details so the hands match full Marines. By shaving the Catachan belt off and using the one built into the Cadian torso, the notoriously short Catachan legs fell properly proportioned. The sculpted blood drops on the shoulder pads, the gloves, helmet, and codpiece all add to the Marine feel while the cloth areas bring an appropriately scout-like feel. I really get a feel of Special Forces Space Marine from these guys.

My sniper squad, including missile launcher and Segeant, all use the kneeling Catachan legs from the new Catachan Heavy Weapons Team set and my close combat squads use the normal Catachan legs.

Helmets are different depending on the Scout's role in battle. Close combat Scouts get normal Marine helmets, missile launcher and heavy weapon Scouts get the marine helmet with the targeter thingy on the side, and sniper Scouts get the tank accessory helmet with the more complex eyepiece, targeter, and antenna.

Pictures of these miniatures painted can be found at this link: https://pbase.com/q/painted