Hawkeye has a side mission on the PSP but not included in the GE. Why? Has anyone made side missions? Hulk should have one for sure. Have him fight Wolverine at the end. That would be classic. Fury could fight Hydra and end with a battle with a cyborg version of his brother Scorpio seeking revenge. The Surfer could battle Thanos or even Mephisto. New side missions with classic conversations would be great.
If you're asking why the devs didn't include them, Nick Fury doesn't unlock until you beat the game, and Silver Surfer doesn't unlock until you beat all the comic missions (thus he can't have his own). The DLC characters probably didn't have comic missions because it wasn't in the development budget to do so.
The Hawkeye mission was already done in the PSP. They couldn't have just carried it over or did they just want it to be a Sony exclusive? Also did anyone in Marvel Mods convert it?