Specialists: The Big Picture

Hey guys this is sort of a question thread as well as a compilation im hoping to do but since i only have 3 days game experience i was hoping you guys could help.
I see lots of threads about the strengths of different specialists (i know pirate+nav is the go-to combo and that people say king is op for e.g) but im hoping to compile sort of a "when-to-hire", "in the long run", kind of guide.
For example my current game status: 2nd day, i have just started invading, 4th specialist hire, options are Revered Elder, Pirate and Helmsman
My analysis:
Revered Elder: more of a mid-late game hire, early game her potential is underutilized as there is too little opponent specs to use on
Pirate:
Ok here's my dilemma, im aware of the various pirate combos that can be used and that he is one of the top tier specs which is why i am extremely tempted to pick him. However, i feel that he is more of a mid game pick since i do not actually have the specs to combo him with this early in the game
Helmsman:
Solid pick at any phase of the game because more speed= less time for enemy to respond and doesnt require combo pieces unlike the Pirate. Additionally, in the context of my game:
1. Im the aggressor, i want to hit my opponent's territories before he can reinforce them especially since he has the "distance advantage" (his reinforcements are closer to his border than my subs are
2. I expanded quite quickly, as such, my territories are spaced out and repositioning subs are a pain without a Helmsman or Smuggler
Above are my opinions on the matter, however im still quite undecided on whether to pick Pirate or Helmsman so i appreciate help from any veterans
Also in the spirit of "compiling" info, here are my thoughts on my other specs:
Lieutenant: Early game. 5 drills is quite a fair bit early on but negligible later in the game
Foreman: Early game, the earlier the better since those extra drillers accumalate. (Any opinions on when to promote?)
Inspector: Im quite unsure about this one. I got it mainly for the promotion but im not sure when to promote. As usual, veteran help is appreciated.
So yeah i do hope some forum regulars will chip in for this "compilation". I know this is a strategy game and people want to keep their strategies a secret but any help is appreciated, even very basic and obvious analysis would be useful for newcomers like me. Just give the specialist name, "when-to-hire" info and maybe even some stories of your past games to show your point
I see lots of threads about the strengths of different specialists (i know pirate+nav is the go-to combo and that people say king is op for e.g) but im hoping to compile sort of a "when-to-hire", "in the long run", kind of guide.
For example my current game status: 2nd day, i have just started invading, 4th specialist hire, options are Revered Elder, Pirate and Helmsman
My analysis:
Revered Elder: more of a mid-late game hire, early game her potential is underutilized as there is too little opponent specs to use on
Pirate:
Ok here's my dilemma, im aware of the various pirate combos that can be used and that he is one of the top tier specs which is why i am extremely tempted to pick him. However, i feel that he is more of a mid game pick since i do not actually have the specs to combo him with this early in the game
Helmsman:
Solid pick at any phase of the game because more speed= less time for enemy to respond and doesnt require combo pieces unlike the Pirate. Additionally, in the context of my game:
1. Im the aggressor, i want to hit my opponent's territories before he can reinforce them especially since he has the "distance advantage" (his reinforcements are closer to his border than my subs are
2. I expanded quite quickly, as such, my territories are spaced out and repositioning subs are a pain without a Helmsman or Smuggler
Above are my opinions on the matter, however im still quite undecided on whether to pick Pirate or Helmsman so i appreciate help from any veterans

Also in the spirit of "compiling" info, here are my thoughts on my other specs:
Lieutenant: Early game. 5 drills is quite a fair bit early on but negligible later in the game
Foreman: Early game, the earlier the better since those extra drillers accumalate. (Any opinions on when to promote?)
Inspector: Im quite unsure about this one. I got it mainly for the promotion but im not sure when to promote. As usual, veteran help is appreciated.
So yeah i do hope some forum regulars will chip in for this "compilation". I know this is a strategy game and people want to keep their strategies a secret but any help is appreciated, even very basic and obvious analysis would be useful for newcomers like me. Just give the specialist name, "when-to-hire" info and maybe even some stories of your past games to show your point