Fall Of The Army

Info
Fall Of The Army is a double-achievement that you can obtain by: Because it is a double-achievement, you can get it twice. That means 2x the rewards!
 * Letting a Bomber Rock that you have planted get destroyed, and
 * Destroying the Bomber Rock Zombie.

Rewards

 * 25,000 cash.
 * If you are on the computer, your tree of wisdom brows 1,575 more feet taller.

Difficulty
Hard-Very Hard

Strategy
Put a Bomber Rock next to the Bomber Rock Zombie. See what happens.