-1 Synergy has already tried this sort of stuff 2 times, first time engineering with the 38th and the second was medical with RM. I don’t think this will work unless it gets limited to a small amount of people.
You already have a buff then. You don’t get a second bonus. The DC-17 is not a battalion bonus, and definitely not something that can be switched with a buffed DC-15s fairly
-1