Town Hall Sniping is not hard if you put your mind to the execution.
To Town Hall Snipe, you'll need to find a base that includes Storages in the middle, and a Town Hall that is seperated away from every building.
To ensure your One-Star by depleting the Town Hall from the base, you'll need to brew up 135 Level 3 Barbarians. 135 Barbarians requires a maxed out selection of 3 Level 5 Army Camps. You'll also need to upgrade your Laboratory to Level 3.
(No execution notes)
If this method works out for you, then you can keep reading my entries for more methods.