so i am doing the omerta (how little we know) mission where you get the chlorine and guns. is this what the omertas are up to and how do i report it back to mister house or when rather?
You should of helped Cachino but, it's too late for that.
From the Wiki
Mr. House asks the player to go to convince the Omertas to ally with Mr. House. The player can achieve this by completing How Little We Know, or killing all the Omertas. Upon doing either, the player must then return to Mr. House.