For my first playthrough I'm deliberately avoiding learning anything about the game externally, and discovered that I've done some really sub-optimal things along the way, for instance only unlocking the Workshop by mid-June in my second year (having underestimated the importance of the workshop, since it is apparently and unusually responsible for being able to contact suppliers and order any ammunition at all) -- but I'm still toughing through with rifles against Osirons with gausses and I'm not above doing a little bit of scumming here or there to keep things winnable.
However, one situation I've bumped into is camouflage -- although I probably shouldn't bother with the mission and I've got saves from shortly before the encounter to fall back on if I decide to let it go, I've got a savefile from the start of a battlescape where I'm up against a landed medium smuggler vessel. The robed smuggler chief always kills one of my personnel in the first enemy turn, without fail: there's a low-level smuggler grunt just outside the Pachyderm who needs to be killed or stunned on the first player turn, sapping up the entire TUs of a single unit to complete the deed -- and so on the enemy turn, by the time the high-level smuggler enters sight range, he is no greater than 3 tiles away from the hapless individual and no matter how I position my gals defensively, they aren't quick enough on reactions to kill him before he rather literally carves up the poor gal (and I've got ridiculously highly trained gals, too).
I've already learned that this is a camo effect, but I'm curious: is there any way to improve sight radius of my gals versus camo? Does ThV work against camo?
I'm starting to ponder just scumming empty terrain with suppressive fire from my Spitfire until something happens... =)