Thread:Byte Me/@comment-25834137-20151018214718

Now, Sin are ex-experiment in this zone. They are trying to fix there degeneration and to do that they have to find out the past and exactly what was done to them which (eventually, if they survived) would lead them directly to the oso and what their plans are for humanity. The spy is there literaly, for that, to spy and misdirect both them and the player (look at the shiney thing in my hand, stalker...).

Mix this with the fact duty are being pushed at EVERY turn to kill them, hence the sin spy cutscene in bar, "they" did it to cause even more disruption between duty and sin, fracturing an already strained mind set between the two. (dirty tactics).

next bit fair play, this REALLY needs to be highlighted (ergo killing the sin houses members) but after this cutscene again, the player is expected to kill more sin members to get into duty. you have the choice to join (only after you've killed the house full of yet more sin members), which after some other small ones then leads to the final mission with duty....complete destruction of Sin.

Thats why the spy is there, next to strelok, they are the main cause for concern of the "nWo" purly because they want to find out about their past and fix it, which would undoublty (if they were good enough), lead to their discovery so they want them DEAD. 