How do I get there

Hint 1 of 4:

Have you talked to Scorpio yet ?

Hint 2 of 4:

Did you notice when you left that you had Email on the C.A.D. ?

Hint 3 of 4:

Read the mail and go where you are asked to go.

Hint 4 of 4:

After talking to Quinn, you can get to the Coliseum.