Weeell, gentlemen, I made my preparations for this. You should have, too.
We still have a very good chance of taking the camp and holding the officer ransom. Then we probably need to sell him back for a hefty ransom and use that ransom to bring a lot of distance between us and this camp.
In a forested region, finding a group of six people should prove problematic, especially if you have to bring in a clear numerical advantage to have a shot at victory. I imagine Liosra won't have enough manpower to send a significant force to chase after us anyway. The woman, however, could, if she has a vendetta or something against us.
Meet up with the remaining mercenaries, then suggest we employ a good helping of divide and conquer. If anyone enters these woods, to reinforce the other camp, he mustn't get through. Pick off the soldiers in the camp one by one. We probably should split. Again. Groups of two are probably good.
Derm, you stay in the woods and shoot the people in the camps if we stir them up. I and Roderick will form the assault team. We have rifles. (Be sure to smooch some ammo off him. I'm running low.) Patch and SK probably will form the interception team, together with the grunts. Anyone has a better idea?
I dunno where we would be now if I didn't have the sense to bring a semiautomatic weapon, heh.
/e: If we have the officer, we can agree to release him for some means of escape, for example. Remember that we pretty much can't turn back now, so it's either Garange or nobody.
A truce isn't out of our options. Someone organizes a white flag and stuff, goes to the Garange officer and tells him we are not that stupid to continue fighting after we failed for Liosra and are slightly outnumbered and stuff and therefore would be interesting in a partnership with him before we get on the blacklist of Garange, too.