Hello. I was recently in a session where I was a rouge ambushing a large group. I was outnumbered but not spotted, so I
tried to create a distraction to start the ambush. I hit the group leader
with a smoke bomb and remained undetected, but when I attacked my dm said I
couldn't get sneak attack damage. His logic was that even though I hadn't
been detected, the enemy was aware that they were under attack and
therefore couldn't be sneak attacked. I think this is bs. If they don't
know where I am then how could they possibly anticipate where to defend? It
completely defeats the purpose of an ambush. I would love to hear your
opinions. Thanks.