Solo tactics in-game explanation

[Aakon]

One of my players is going to take levels in the Inquisitor class, and asked me if there is an in-game explanation for the Solo tactics feature.

Did anyone come up with any?

[avr]

Keenly observing your comrades and timing your moves with theirs, or exploiting the enemies' distraction when your ally does something perhaps.

[Lelomenia]

I was going to say that in my imagination, Inquisitors tend to travel around, commonly teaming up with strangers to deal with Enemies. There’s some language that follows similar lines, but maybe they have something like this for every class to justify groups of PCs:

Inquisitor wrote:

Inquisitors tend to move from place to place, chasing down enemies and researching emerging threats. As a result, they often travel with others, if for no other reason than to mask their presence. Inquisitors work with members of their faith whenever possible, but even such allies are not above suspicion.

[Chell Raighn]

Being so accustomed to working with different groups of individuals all the time, inquisitors (and anyone else with solo tactics) have learned to improvise with techniques that normally required careful planning and coordinated teamwork. As a result they can exploit the briefest of opportunities when an ally’s actions line up with their talents to perform feats normally thought impossible to perform unaided.

[Manitto]

It's in the class text

Inquisitor get Teamwork feats instead of regular feats
usually 2 Players must have the same feat to work, but an Inquisitor for having Solo tactics works as all partners do (Just for the inquisitor not others) So he can benefit from them
There are tricky ones

Bonded Mind (Teamwork)
You and your partner are so close that you can almost read each other’s minds.

Benefit(s): As long as you can see each other, you and an ally who also has this feat can trade nonverbal messages. These function as the message spell, except that you don’t need to whisper or point, and you cannot be overheard.

He can use it but his partner cannot hear him or Responde

[MrCharisma]

Manitto I don't think that's what Aakon is asking.

Mechanically we know how it works, but thematically how do you explain it? What does the Inquisitor tell people when they say: "That was some good fightin', how'd you learn to do that?"

[Manitto]

ahhhh sorry
Even more easy
You are a warrior of a deity (most of them), member of a cult, religion or sect, a congregation of belivers who serve to a same god (mostly) as such you may have received training from a member, teacher or even your god itself
You fight for something greater then you, you'll never fight alone, as such you learned how to fight as a pack, even if your party doesn't feel like it

Hope it works for your player

[Mysterious Stranger]

Inquisitors are good at reading people so have learned to pick up subtle clues that allow them to anticipate what people are going to do. They are also good at identifying the abilities of their enemies and exploiting any weakness they may have. Inquisitors pretty much know what people are going to do in combat before the person do. Solo Tactics are the inquisitor’s ability to understand what both sides are going to do and to exploit that in combat. They see the opening a spilt second before it happens so they can exploit it, but they don’t have enough time to warn others in a way that would not give away the weakness and allow the target to negate it. If the inquisitors ally is trained in the tactic the inquisitor is using (has the feat) they can recognize what the inquisitor is going to do and act appropriately (get the benefits of the feat).