- Why wits is the main attribute of the boss? All socials skills are governed by Empathy. It's quite strange to have as the only wit skill "command".
In the Swedish edition, the boss uses Empathy or more correctly "Känsla", which is Swedish for Feel, Feeling, Emotion. It was changed to Wits in the English edition for unknown reasons. I agree with you that it is strange.
- How do you deal with bullets/food/rations of the boss when you are in the Ark. It's unimited ? You have to racket ?
Your gang "have enough grub and water to survive. If they have guns, they also have just enough bullets" if they are in the Ark. This is not unlimited. It means that the gang have enough grub and water so they don't starve or dehydrate, but not more than that. If they have bullets they have just enough so they can take action in a scene, but not more than that. This also mean that if the gangs are involved in two shooting scenes in the Ark without any time between, they probably won't have any bullets for the second scene. This is of course a GM discretion thing. I guess that the gang members get their grub/water/bullets gang way, something that we can assume they do when the boss is doing something else, or between sessions.
- With Gunslinger talent your gang have access to bullets and firearms. But Bullet are also the money of the Ark. So you have unlimited money and can buy the best equipment for you ? It's quite hard to define the limit.
If an NPC have bullets, its the NPCs bullets and just as have been said above, they have just enough grub and water so they don't starve or dehydrate. They have just enough bullets so they can take action in a scene, but not more than that. This could mean that the gang only have one or two bullets each. If there are more gunshooting scenes with little time between, the gang NPCs can be assumed not have enough bullets. I don't think the gang would like the boss very much if he takes their stuff (see below).
Also remember that various gang members can rebel against their boss.