So I've been playing a lot of games lately in hopes of solidifying my Adepticon list for next year, and one thing keeps creeping up that I wanted to seek advice/feedback on, that being the best pairing of CSM equipment. I run three units, all equipped the same: 10 marines, x2 MG, x7BG, AC w/PF, MB all in a Rhino w/DB. Now, one thing I started to think about was maybe swapping out a few of the marine's BGs for CCW/BP configs. My thinking was that maybe have four of these guys loitering in the back for a turn three counter-attack, or turn two charge defense (pad up that dice pool). Does anyone do this currently, and if so would you be willing to share what you've learned/experienced in various games? Any help is appreciated. Cheers!