How it works:
- At the achievement interface you will be able to obtain task and hand in task
- When you have obtain a task you will be given a task to obtain X item during a raid
- the X item will have a chance to appear on a random building during a raid and you must destroy it to obtain it. so if you want to complete your task you must carefully observe each building before you skip the base.
- after you obtain the item you will gain X gold/elixir



