Glad you like it!
Pseudonym is easy. "Ace" is it. Since I swiped the last name Harding from Deja Vu (and Deja Vu 2, Lost In Los Vegas), it's a perfect, easy fit, and even sounds natural. If a surname is required, Marlowe will be the one.
I'll expand as I get the chance. Think maybe toss out more audio-logs as the game goes on, assuming he records every once in a while during 'downtime', if that's alright.