Hi having heard of this, I was immediately intrigued especially as its a great way to experience CoD zombies without giving Acti money and due to the current state its gotten me even more excited.
I have a suggestion for a future update: Will you allow us to choose any player character for maps and such or at the very least who we spawn in as for each map. I'd love to play as my girl Samantha Maxis(cold war version) on the Black Ops 1, 2 and 3 maps for instance. Thank you!

you can! its in the settings! i hope this helps!

edit

i realized this was kinda vague. you have to go to setting, gameplay, and at the bottom theres a selector for characters.