It seems Chaos despoiler hangars are currently bugged
Based on what it says at the bottom in the description, these three hangars should either create 6 squads or 3 squads the size of six. However, neither of these happen. When ordnance is used in games, it creates 5 squads of equal size, one for each of the double hangars and one for each single hangar.
Only 5 squads are visible, all of equal size.