They are mostly independent agents that take contracts from them from time to time.Say, why are Rouge and Omega listed as independent? They work for GUN in most timelines. Something to think about....
Either way, we will be negotiating.
As I mentioned, that collab will only be possible with one condition.
They help us and we give the location, as long as they give us a full copy of Chuck research of everything he did under the D6.
A negotiation is all about eating the cake in pairs,not taking everything for yourself.
They want the scientist? fine we know where he is and we could show we are willing to play ball.
BUT if they refuse to give us the research, then they get nothing.
Like there is very little GUN could actually offer us at the moment other than resources and info.