I grouped these by what I suspect Gulenko was going for
SLE Harmonizing:
Marshal - Schemer - Hmm. not really a schemer. More like overseer
Prototypes:
Human resources representative, - This sounds like hell
strategic planner, - Possibly.
overseer of business mergers - Yes
He is prudent and foreseeing. - Yes
He can sense threats, but hopes they won't come to fruition. - Yes. Who hopes threats come to fruition?
He is quite secretive and dislikes having people look into his personality. - 100%
At heart, he is quite superstitious and suspicious. - Suspicious, Yes. Superstitious, No.
Periodically, he finds himself in pessimistic and melancholy states, trying to figure himself out. - YesHe considers himself a strategist and works out different solutions, finding ways out of sticky situations. Yes
He is able to evade intrusive conversations, but will display insolence if necessary. - No / Yes. No, I can't evade shit. My Gamma Fi dodge skill is 0. Yes, I definitely will "display insolence."
He tries to maintain the upper hand over his enemy through maneuvers and proactive action, never directly fighting. - Yes I steer things in my favor, No I don't avoid directly fighting. Depends on the situation, the traits of this hypothetical enemy, the potential consequences, etc. I like direct conflict, but this is 2020, not the wild west.
These seem to just take IxI Ni, and forget 4D Se and low diplomacy
He devotes himself to the right people, showing care by serving them. - No. Change that to claim/possess as my own, and showing care by protecting them, scouting / navigating, removing obstacles from the path etc.
While showing kindness to others and being friendly, he requires unanimity and solidarity. - No this sounds like a recipe for stagnation and groupthink. If I require anything, its informed perspective and challenging. Reality over family, friends, feeling, desire, belief, opinion, prejudice, metrics, etc. However there is a difference between arguing in good faith vs being a useless troll, contrarian by reflex, or ideologue.
These seem Fe ego
He will organize avenues for collective work to prove his competence. - No. Not at all interested in proving anything. Could have been accurate if he had said "to achieve the goal."
This seems like Te valuing or Te insecure
He is afraid of opening up for fear of becoming dependent on people who sympathize with him; however, with a change of environment, his emotions can follow through. - No. More like see it as pointless since it almost never helps. Or not willing to add the hassle of dealing with a future backstabber / gossip. Or not wanting to give people the wrong idea that by opening up, I want to know them. I am very open with strangers. No idea what "emotions can follow through" means.
In moments of despair, compassion, understanding, sympathy, and consolation are what he needs, though he could never pour his heart out to everyone. - No. In times of despair, I would need loyalty, hope, inspiration + generous amounts of affection and sex.
He requires steady support from close friends and family; - No. That sounds annoying as hell.
(continued from previous sentence) he needs a place of solace. - Yes, but who doesn't need a place of solace (except maybe ESE)?
These seem like depressed LII
He will neither deny himself gourmet food nor pleasure. - No. I don't care about food let alone gourmet food. Or comfort. I would not deny myself sex, but can easily go without other kinds of pleasure.
He is flexible with matters regarding friends or leisure and entertainment. - I am spontaneous in terms of time and place, but not flexible in terms of people or venue. The crowd & entertainment need to be very Se, or I'm gonna bail.
He is able to wait for the right moment, but, the fear of risk-taking can cause him to miss opportunities. - Yes, able to wait. No, Not afraid of risk. More like, not easily enticed to make a move.
These seem Alpha or Delta Si