a) These are the props that we intend to use in our title sequence:

Prop Gun
We need a prop gun as it is the object that will be used to shoot Jackson Roberts. Without this prop, the scene in the alleyway would not make sense and it wouldn't be possible to refer to protagonist's PTSD. Although it would be easier to film with two guns, it is not essential.
Notepad and Pen
A notepad and pen are other essential props in our title sequence. These will be used by Maria Woodworth in the second scene to note down Jackson's thoughts.
Other non essential props we may use are a badge for Jackson to show that he is a police officer and a flashlight for the alleyway chase scene.
b) Costumes
Jackson Roberts: We aimed for this character to look casual.
Suspect: We aimed for this character to look suspicious and to blend into the background.
Maria Wordsworth: Our aim is to make this character look professional and confident. Also, we intend to make her 'pure' through the use of white.
c) Setting
Alleyway:
Office: