"Cease fire!" There was no longer any return fire from inside. Lee shouted twice, then arranged for cover, inching towards the warehouse door. Jimmy was no longer needed here, so he simply holstered his revolver and watched Lee and the others rush in to apprehend the people inside.
This time the FBI suffered heavy losses, with five agents shot on both sides. If it weren't for Jimmy, most of Lee's men would probably have been taken down by those two experts. They wouldn't have died, though— the people on the other side wouldn't have thought of directly killing so many FBI agents. Otherwise, the three agents who were shot probably wouldn't have even had the chance to shout out that they were hit, but getting shot was unavoidable for most.