They just from vans and do their jobs and then disappear.

Hydra have standard for its agents. And Talbot head it is too hard for being brainwashed.

This have to be about the "darkness" inside her.
She is turning dark but not evil (for now).

Castle would never shot Ward.
Not before extracting all useful intelligence from him.
And "extracting" would not be figurative.

She would go after Absorbing Man with a metal arm.
I would suggest Blizzard will find a way to fight the brainwashing activation phrase (like icing his own ears), then froze the HYDRA lackeys.

Maybe it is overreading the scene, but…
Talbot made a strange expression when he talk to Agent "Two millions". And he never told he would give her a proper funeral.
Just what she deserved.

MENA is Middle East & North Africa (or Maghreb)

Carpenter?

Working on it.
It is sad to be Poles, in between Nazists and Communists.

Frank Castle, Agent of SHIELD (just for short mission) would be interesting.

Someone noted a blue arm in a box, in 1945.
Someone need a new arn now.
Suppose they will give her a new arm, so they will have a Shield Agent with a blue arm.
Hard to be undercover with that.

How many roads could they from a super secure military base?
Not many.
And probably he had Hydra support.

The comment about "usually get of changing is some material" I bet is the key of something.
Would not be the first time the heroes trick him in absorbing the property of a material they can dela with.

will Xena get a blu arm?

In Fact, it can be noted he repeat the words of Mind Simmons when May talk to him.
He is something aware May do not hear them.

She would be a very interesting Misty Knight

This is a very interesting theory.
It would go well with Garrett talking about "the world under the surface of this world". Deviants live in underground, undersea, cities.
And the "crawl out of sea to stand, put roots or fly."
stand (for men) put roots (for deviants) and fly (for eternals)

Killian was financed by someone (AIM) to develop Extremis.
Killian was just the head of a cell of AIM.
But AIM could be a part of Hydra.

The original Marvel Universe have the Marvel publishing comics about the heroes. The Thing always went there to complain about this or that way his stories were written.

She see/know something other do not know.
She appear very amoral.