Yeah, the "Stay Behind" thing is driving me crazy in CBM 1.6 EA Arco, when I'm fielding large quantities of Engineers (yay for non-cap leader, finally!) and SCs and dunno how to protect them since they all just crazily charge the front lines.
I could give them some crossbows and summoning trinkets but that's annoying to micro (and I have... er, *had* a ton of engineers).