I didn't like the ending at all. It's okay that it heavily references the first Deus Ex, with almost the same options: "dark age" (going back), "merging with the machine" (it's practically the same here), and the third option, symbiosis (this one is different and seems the most logical; although, I chose the "red" ending as a basis for myself). But I didn't like the way the ending was presented: all these meetings with the secret Creator, the chosen one, and so on. Of course, throughout the game, Shepard is almost deified, and each new success reinforces this, but not to this extent. It seemed illogical and too mainstream.
The game itself is a fun action game with minimal RPG elements, mainly in terms of equipment and "skills," and a few dialogues. It's enjoyable.
Why would huge, almost indestructible machines need infantry in the form of representatives of the captured peoples?
Same as above. We capture a bunch of refugees to create a zombie army.
SUZI. This is just... I have no words. An inflatable doll replaced the artificial intelligence of Normandy and became a full-fledged companion.

Барон "Vampires"
Отдай свои прошлые сны,
В сомненьях себя обрети,
В бешеном танце душа кружится!
Не думай, что будет потом,
Здесь и сейчас мы живем,
Стань хоть на миг сам собой, слышишь!