Do we know for sure?

[Bongfarmer]

Becasue of all the screenshots we have(not new ones nessecarly) everyone assumes you are with the gman/combine at the begining and then turn agaisnt them and go rebel

What if the gman is on the rebels side?
Or what if you start on the rebels side, but they turn out to be the 'evil' side and you finish the game as combine? or alien?

 

[satch919]

If we did know already, that would ruin the experience.

 

[ferd]

I dont know shit about the Gman's position...

 

[[sl@yer]]

I think it's obvious you're not on the side of the combine at the beginning. They treat you badly just like all the other citizens. Gman I think is impartial....he most likely has his own agenda.

 

[mitchferrari]

I think that the Gman will screw u over. but thats my guess. I think ur only on the rebels side.