Jason loves using two guns everytime he puts on a mask. His Red Hood and Batman personas had them, but Hush also have that love for guns. So this new hood is very tall, and Hush is much taller and bigger than Jason even Bruce. But in the other hand the Joker is a big dude and he likes to change his appearance even physically.
So lets include Hush into the mix.
Hey! his the one in Streets of Gotham #4 to say that he was tired of been a puppet.