Killing Floor's Steam Summer Camp achievement

[Tek7]

From today's batch of Steam Summer Camp achievements:

The Big Hunt - Kill a circus Scrake with a crossbow

Perducci posted the following on the Steam Forums:

Open the game. Choose Solo. Choose KF-AbusementPark as the map. Choose Beginner Difficulty. Click Play. Select Perk (Sharpshooter might be best). Click Ready.

Then kill the waves. When a wave is complete, follow the red path to a trader. If you have enough money you can buy a Crossbow. If not, just wait and complete another wave and then you'll have enough money. Then keep killing the waves of zombies until a monkey looking one with a chainsaw comes (probably wave 4 or so). Then press 4 for your Crossbow, and just shoot him until he dies.

It's not too hard, actually.

So who's up for a quick round of Killing Floor?

Sure, I could probably earn the achievement solo, but playing coop is more fun.