OMG! ^^ I was going to do almost the same thing! Empire Avengers! I think this is a well-thought-out team you've got here, makes a lot of sense - Taskmaster as Ronin is a nice touch in particular.
The only one which I am iffy about, is Brock Rumlow, aka Crossbones - he would never join Cap! Especially since I figure this would be after Cap has killed off Red Skull.
All right, this is my take on it... THE EMPIRE AVENGERS!
1. Captain Hydra (Steve Rogers)
2. Baron Zemo
3. Atlas (Erik Josten)
4. Black Ant (Erik O'Grady)
5. Taskmaster
6. Anti-Man (Conner Sims -
he's now the herald of galactus, so I figure it would make sense for him to get involved, what with the cosmic cube)
7. Madman (Philip Sterns)
(with the death of the Hulk, Sterns is now listless and without purpose in life - ENTER... captain hydra! ; ) )
8. Baron Mordo
(with Steve's help, Mordo has become the SORCERER SUPREME!!)
There! This teams got a little bit of everything, and features villains whom have similar, somewhat grey opinions, or whom are easily controlled/manipulated, by Captain Hydra.
empire_a.jpg