There's a great raid like this from a few years ago in EQ1. It's in the Field of Scale (Field of Bone in the ancient past, before the fall of Cabilis). The raid takes place during the final battle between Emperor Ganak and the dragon forces. You have to run around reinforcing particular dragons to make sure they don't get killed, until eventually Jaled'Dar and Ganak both take to the sky in a battle. It's one of the coolest raids in EQ1, and is similar to what you are describing. There are a few clips of it in this video.