Rentahamster
Rodent Whores
Yeah, this can happen now, but it's always by accident instead of just according to keikaku*.This definitely happened to me (on Normal). I 'heard' them moving around me every round until suddenly my squadsight sniper who is always in the back was attacked from behind and barely survived.
I guess it should be more frequent though, maybe would be if maps were a touch bigger.
Interesting points though, I'd agree with a lot even if I'm yet to try anything harder than normal. There's definitely a point where the strategy layer becomes very easy, that's the main issue imo.
I'm thinking of having the as of yet unrevealed patrols getting called in by the aliens you are currently fighting, and instead of continuing on their random patrol, make a beeline stright for your position.
A 20% random chance for the ranking alien on that mission to decide, "aw fuck it, let's just bum rush these XCOM jerks" might be a nice variety once in a while.
*translator's note: 'keikaku' means 'plan'.