I like Thunderbolt a lot. I don't like what has been happening to him though.
IMO, a character like him, a seasoned military master, with the original profile of Red Hulk should easily be one of the highest threats in the Marvel universe.
Unfortunately, none of the writers there have any idea how to write utilizing military technique, tactis, strategy, etc. So this huge part of the character's profile gets completely ignored.
It is very sad and silly.
Hell, if you took the average Seal and only threw him in the body of, say, Luke Cage, you would have a character capable of defeating most of the top bricks in comics.