Synopsis
The Avengers gather for a meal, and probably a strategy session (this part of the comic has no dialogue). Red Hulk looks back over some events in the Avengers vs X-Men story, and considers what his role in the conflict should be. Only Captain America knows that he is Gen'l Ross, and consults him for strategic advice. RH deduces (without asking) that Cap wants him to assassinate Cyclops, something that neither Steve nor Wolverine could bring themselves to do.
RHulk monitors the activities of the Phoenix 5 (Colossus, Cyclops, Emma Frost, Magik and Sub-Mariner) waiting to find Cyclops alone. He would have no chance against their combined might, and Emma Frost in particular would be able to detect his approach.
Choosing his moment he infiltrates Utopia Island as Ross in stealth gear. He slips past Magneto (all his weapons are non-metal) and Transonic, and locates Cyclops. He is about to shoot him, but his trigger finger freezes. Emma Frost has found him!
With her mental control she makes him unmask as Ross. Reading his mind she learns that this mission was all his own idea. She tries to make him commit suicide, believing that she can stop him Hulking out. But the transformation happens without either of them willing it.
The subsequent brief fight alerts Magik and Magneto (Colossus and Namor appear to be away). And of course Cyclops who smashes RH with his eyebeam. Magneto helps by encasing RHulk in metal. For a short while. And Magik uses her soulsword.
Cyclops decides they should send Red Hulk back to the Avengers. But before he goes Scott burns an X in his chest as a message.
RH crashlands in Wakanda where he is greeted by Black Panther, Captain America, Hawkeye and Iron Man. He shrugs off his injury. His final thoughts are that if you fight a war you must be prepared to kill. Cyclops has just shown that he's going to lose the war.