"Ladies, children, S.H.I.E.LD.... Some people call me a terrorist, i consider myself a teacher. Lesson number One: Heroes, there's No such thing". - Taskmaster. "The Rejected Avengers: Enter The Taskmaster". "Mr. Parker. Today will be the first day of what's left of your life. I'm gonna the choice; do you want an empty life, or a meaningful death?" - Mysterio, "Spider-Man 6".
This movie was a clusterfuck. If they went with the REAL Mandarin storyline, and didn't misused War Machine, it would have been great. Mandarin's martial arts and alien power rings plus his technology against Stark's. A final battle of Tony vs Mandarin were the Mandarin died with honor while WM was busy wiping out his forces and some right hand man with superpowers (Abomination) would have been far better.