The key generator needs just a little more data before you're ready to return to Banshee for final authentication. To further limit the possible codes the generator can create, you'll have to recreate the conditions under which Banshee programmed the first codes: fighting Red Legion forces during the Red War.
Complete an epic reprise of strike "The Arms Dealer" in the European Dead Zone on Earth.
"Think we'll have time to drop by to say hi to Devrim? It's been a little while…" —Ghost