My observations:
-madchemist is a spy. I would in particular like to point to this strange statement: "Well, I get the card at least, which bodes somewhat well for Falc being good." Falc does not know whether or not madchemist was Resistance, and madchemist does not know whether Falc is Resistance or not. As such, this exchange is very very change, and quite suspicious. I would also like to refer back to what I said earlier about statistics, as well as his recent accusations which are grounded in the assumption of both him and Alxeu being Resistance. Unfortunately, if he is a spy, then he is lying.
-Alxeu is too blatant to not be Resistance. That said, he could be a spy, but playing very unsubtly, but I highly doubt that.
-Falc ... tricky. Some things point to being a spy, and some to being Resistance. In particular, him being correct on one on the team being a spy points to him being a Resistance, for if there are three on a team and Falc was Resistance then he would know that there was at least one spy. It would also be quite risky for himself to state such if he in fact was a spy.
-When it comes to Aedan, well ... applying the reasoning above on Falc's actions, I think he is a spy. He gave no other reason for rejecting except "obvious reasons" (in contrast to Falc's very determined "there is a spy!", which as said is very risky to say if you yourself are a spy), which I interpret as him not being on the team. In addition, he was the first one to raise any real suspicion. One could also add his lack of elaboration on his reasonings to the pile, though it is natural for anyone to only trust themselves.
On the other hand, both Alxeu and madchemist could be spies, but that would be most unlikely, and does not match up with the current evidence. Also, assuming that madchemist is speaking truthfully, then that is yet another point against Alxeu being a spy. Of course, that would make madchemist a spy ... which makes it unlikely that he would speak the truth.
As for me, I am just creating hypotheses and testing them out. Taking risks, yes, but one has to. Those who I currently suspect are Aedan and madchemist, on the grounds provided above. I tentatively believe that Alxeu and Falc are both clean.
EDIT: As for my "hunch" earlier, which was the reason for supporting that one mission, it was on whether or not madchemist was a spy (as for not suspecting Alxeu, see above).
EDIT2: That said, Falc has done some strange things, but I think he was just testing.