Ellynne wrote:
This requires two Avons (sort of).
Instead of two Avons you could have Avon & the System brain. The System brain follows the path you suggested, gets into Liberator and breaks away from the System. The System crew abandon ship because the DSV is out of control. Avon comes aboard, and the brain recognises him as being a suitable host (on the basis of, say, intellectual capacity or dress sense or whatever). Therefore the brain somehow transfers itself into Avon (rather than a blank clone).
This means both characters can keep their separate backgrounds, and you can account for any of Avon's bad decisions or behaviour on the basis that two minds are fighting for dominance of the body. Perhaps if one wins, the other ceases to be?
Further, you could have Avon fixate on Blake & the brain on Liberator. Avon partly knows what is happening to him, without fully understanding it. Avon flys the Liberator through the enzyme cloud on route to Terminal, intending to at least damage it (a blow against the brain). Liberator is destroyed, the brain becomes unstable. This could be matched up with Avon's s4 behaviour (if you think he was irrational). On GP, the brain takes control in a last-ditch effort and shoots Blake, punishing Avon for the loss of the Liberator. It then dies, finally leaving Avon in control of himself. Avon looks down, sees Blake, looks around, sees the troopers....