I doubt these are bugs, likely more limitations of the game engine, but I'll share regardless
1) If I contact a merc to hire, hear their message, then close the window without hiring, the next time I open it I see an error message in the chat window instead of a message from the merc. I'll try to make it happen again and get you the exact language.
2) Junkyard can't climb into certain sections. I assume this is just a game limitation, but it is worth noting.
3) When making an IMP the explanation for the grenade making skill mentions Firefly.
Overall, great work!

1) This is possible to fix, but I have to go back and add code for each of those situations. I sort of rushed through the basics with dialogue and moved on to the next character. I might fix this on another pass someday.

2) Yeah, it's too bad about that. Enemy hyenas cannot jump up two floors so neither can 'ol Junk. Someday we might get an entity for a true merc hyena and that should be fixed then. Also, he would be able to move properly as well as stealth if that ever happens. I mention it in his mod description.

3) I never noticed that before. In testing it looks like any personality specs or quirks you add are automatically added to that list. I plan on adding more quirks so I suppose that means you will have more to choose from when making an IMP, heh. (Ironically, anyone can craft shrapnel grenades currently, since there is a bug with operation missions and unique recipes. To fix the bug I had to make the ability non-unique. This also means Firefly only has 2 specs since the third effectively does nothing currently. He's still a badass with the perk he has though, so not too worried about that.)

Thanks for the feedback!

Firefly's perk was updated so it no longer mentions his name. Also given added AP reduction for grenades.

I wonder... is it on purpose the option for repairing gear between sections is non existing ???

You are unable to see the repair operation? What other mods are you running?