I finished building my Crimson Fist Terminator Squad. I had used the Forgeworld shoulder guards on part of the squad, but not all. I'm still trying to give each model that sense of individuality, so I mixed some of the standard Terminator shoulder bits that were included with the kit. I'm thinking the FW ones are more representative of the 'ancient relic' theme and the 'kit' guards are the 'newer versions'.
The next step is to scrub the resin bits and then prime these bad boys.