Series 9 Episode 8 discussion

[Byatil]

If that were the case though, why would Lucas be so obviously emotionally involved? Surely 6 would have had some correspondence with him if this had been planned, and from the way RA acted the part (and indeed, the way the character was presumably written), I'm unsure as to why Lucas would have cared so much about Vaughn and Maya, and why exactly he would have allowed Maya to have been put in that situation if he did indeed care for her? Even if she was a woman he didn't know, we have already learnt that Lucas can have a great deal of compassion for relative strangers (Dean's death - Lucas appeared rather distraught), so it would make little sense for him to allow a woman to die simply so he could return to Russia (which I also don't understand why he would want to do?); the country where he was captured and held for 8 years previously. It just doesn't make much sense to me that he would ever agree to go undercover in Moscow if he thought there would be a significant element of danger to the job - and if we assume that S9 was all an enormous cover-up, then it seems strange that he would agree to give up his job at MI5 to work for 6 instead?

I personally think that he didn't shoot himself because the script needed to allow him a chance to come back, and because RA had previously said he'd like to "leave quietly". Shooting yourself in the head isn't the most silent of deaths

It's a nice theory, but it just doesn't hold much water for me. Sorry!