Was your regiment... organized by the government? You took orders and worked as a team? You might be well suited to working for this world's government too, then.
My battles were mostly in secret, at least from the government and the general public. People don't believe in demons, unfortunately, at least they didn't at home. So I'm not really used to taking orders, or being loyal to a government agency. I didn't mesh amazingly well with SHIELD, even as a consultant. But the fighting experience might be similar. What are the Titans like?