did you see the RCS formation of 2...
15 + dice of PAC and 15+ of Plasma Lance!
Defense Array of 7!
Yeah I saw that...brutal. Thankfully that element is a BR6, so it is a battlegroup unto itself.
I'm more concerned about the unsupported RCS being a BR2. That means you can put two of them, or an unsupported RCS and an unsupported CCS, into one battlegroup. I don't have the stats right in front of me, but I did the math on the Plasma Lance attack dice from that yesterday...I think with an RCS and a CCS (both unsupported) in the same battlegroup you would have 22 attack dice at 32 inches (12 from the CCS and 10 from the RCS). Granted they would be Firepower Rating 3, but that could still cripple or destroy a Marathon at long range (especially if it's already damaged), and put the hurt on an Epoch as well.
I think the RCS is going to be a big boost for the Covenant.