Squads Online (Red Dead Redemption 2)

Let's start in order)) We play RDR with a friend, I bought myself a hunter's license for 15 gold in order to be a bounty hunter, a friend wants to be a merchant. I created a detachment on a permanent basis for $ 200, now the question arose of how to buy a butcher's table for 15 gold to a friend. Through extensive Google, there is no particular information. Do I understand correctly that only the leader of the squad should buy all professions? After all, a friend left the detachment, created his own detachment, then I joined it, and when I approach the board of wanted criminals, the game tells me that only the leader of the detachment can start.
That is, as a result, we need to have 2 detachments? one of mine to go through together and catch criminals, and one detachment of a friend to trade together?
I don't understand this diagram, please explain.