So I was doing a mission in a downtown area, and it focused mostly around an alleyway, I set up my sniper on a 3rd floor (second rooftop) in order to create a nice little deathtrap for the aliens I knew would come flooding down that alleyway.
But when they did finally come, he never once had a shot at them, I was essentially down a man the whole mission and almost lost the whole team. no idea what was up with that, does height contribute to range or something? I don't think he had teamsight on so that might have been an issue, but aliens running around 3 blocks away on the ground level where completely safe, not even bad percentage, just no shot at all.
If i hadn't gotten really lucky with some overwatch shots I'd have been a gonner.