Grumpy has quite a lot of health but is not the best at handling the groups of enemies, so assist him in vanquishing them. Numerous waves of zombies will spawn, with just Spawnables at the beginning, then adding Foot Soldiers and Imps. Once Grumpy is found, the player will then have to escort him back to the plant base. Vanquish them quickly and proceed to Grumpy. On the way there, there will be a few Browncoat Zombies and Conehead Zombies. As he is always indicated by a large arrow labeled 'OBJECTIVE', it should not be too difficult to find him. Grumpy Stumpy can be found in the Zompark, to the right of the zombie base when looking from the plant base. Once they arrive at the base, the quest is completed and the rewards are given to the player. After he is found, the player has to escort him back to the plant base, defeating occasional spawning zombies on the way and keeping Grumpy Stumpy from being vanquished. On the player's very first mission, Dave-bot 3000 instructs the character to seek out Grumpy Stumpy in the Backyard Battleground. 'Agent Grumpy Stumpy has not reported in from his infiltration mission.

The title of the quest is simply the NPC Grumpy Stumpy's name, referring to the fact that the player must seek him out and escort him back to the plant base.

Sorty bot 3000