The one-shot CIVIL WAR: WAR CRIMES by Frank Tieri had Captain America making a deal with the (imprisoned) Kingpin. It allowed Iron Man's heroes to find and capture a group of low-level villains. That was OOC.
But a lot of characters in CIVIL WAR acted OOC or against what they had done in previous stories. A few issues tried to explain, but they didn't do a very good job.