@mattd43: I have the entire first series of Project Superpowers plus Issue "O" Prelude to the second one. However, there isn't a Masked Marvel character in any of the books, unless I missed him.
You may want to check on ComicVine.Com and type in "Masked Marvel" in the Search toolbar.
However, there are a number of Masked Marvel characters. Funny thing is I also added yet another Masked Marvel from the old movie Serial. AC Publishing ran a comic featuring THAT Masked Marvel and I added him to ComicVine's list of characters.
Regardless, check ComicVine.