Can you use the Assassin's Assassinate with grenades or thrown area of effect weapons?
Assassinate: Starting at 3rd level, you are at your deadliest when you get the drop on your enemies. You have advantage on attack rolls against any creature that hasn't taken a turn in the combat yet. In addition, any hit you score against a creature that is surprised is a critical hit.
Alchemist's Fire has a 5 foot radius AOE or a stick of dynamite or grenade via DMG has something similar. These would be considered ranged weapons/attacks...right? Not counting sneak attack damage, would an Assassin tossing one of these in the suprise round still deal critical damage to those in the AOE.
Ex: Assassin tossing a "grenade" at group "X" in the suprise round and grenade does a 3d6 fire (or piercing if frag grenade) in a 5 foot radius, would all in the AOE get dealt 6d6 fire (or piercing if frag grenade)?