In the MP Reveal Trailer for Call of Duty: Modern Warfare, you may have noticed that there’s a scene where the character is climbing up the ladder and turns around and fires the weapon at an enemy.
That mechanic was not fully tested out during our hands-on event in LA with Call of Duty: Modern Warfare, but Infinity Ward’s MP Design Director has confirmed on Reddit that there is in fact the mechanic to fire your weapon while climbing a ladder in Call of Duty: Modern Warfare.
Yes there is .
You can see it in the trailer at the 2:30 mark: