This illustrates my issue with there being 3 "different" games. Everything you're looking for is laid out perfectly... in AoR. But you'd have to drop an extra $60 to get it.
The structure of the game(s) isn't the problem.
A "James Bond" character (a spy for military intelligence ) is just a poor fit for an EotE campaign, therefore there's no reason to expect there to be a good class in EotE to represent the archetype.
Gripe all you want about having to drop extra money, but this complaint is as valid as being upset because you're not able to play a space marine in a D&D campaign.
Not if he's a spy who has been burned.
Then the character concept fits handily.
It's just going to be a really uncommon character next to the kinds laid out in EotE.