Secret Six #26; there were more action-y moments in this issue, but I liked this one, because it's literally the first time I've ever found myself rooting for Amanda Waller.
Doom Patrol #15; the Chief goes mad with artificially-infused Kryptonian power, and disarms the entire world at superspeed. The team's forced to bring him down, with a little help.
There's also a revelation at the end of the issue, which if I'm reading it correctly, retcons the retcon that said Chief caused the team's accidents. Basically, he states that he allowed them to direct their anger towards him, rather than let it consume them. I'm not really sure how I feel about that.
R.E.B.E.L.S. #21; the rookie Lantern from Okaara takes on the Main Man.