Thanks for the input, everybody!
I've actually had a chance to run this a few times and I've actually had it work really well! Even with Joss reactivating, Johan can usually get into the fray and get his Cb bonus. With said bonus, his combat becomes insane (8 melee, 7 ranged) for a 6SS model.
The only downside to this strategy is that Johan stands out as a rather squishy model. Not being a construct, Ramos can't heal him, so he does tend to go down rather quickly, but he makes sure he doesn't go down alone.
And, just to say it, I rather like Johan's model. To each their own, to be sure.