First, there were cats.
Then, there were tremors.
Now...both.

Download Desert Rats (required gametype)
Download Death Valley (map)

Recommended Players: 12-16, but the full 16 is best, so lets party up!
(any less than 12 players and you need to change the game settings to allow only 5 zombies)

Desert Rats takes two of the most popular mini-games and smashes them into one incredibly epic, large scale battle.

Death Valley uses Alex RFW's Sandbox Open canvas where the laser-wielding sphinx's have been blocked off, which creates a nearly complete free-roam for the rats (mongeese) to frolic in. But tread lightly, for thou are not alone. Set out to spoil your fun are a staggering 2 cats and 4 tremors!! Don't worry though, its not as bad as it seems. The vast amount of area to cover is intimidating, and the cats/tremors must work together to coral and cut-off the rats. The actual forging isn't spectacular, but I chose to avoid putting too much stuff int he center of the map to focus the rats to the hills, which provide ample cover to cunning drivers.

Just like traditional Cat N Mouse, the Cats won't be let free from their cages until the 30-second mark passes.
Some tweaks in the original gametype did need to be made to accommodate for Death Valley. Most notably the Cats/Tremors can now see their allies' waypoints. Last Man now garners 6 points, and each round (3) lasts 7 minutes.

Desert Rat Honor Rule
Choppers do NOT fire their guns.
Humans (Rats) may not board a chopper

VERSION 2 PICTURES:

One of two Fun Boxes now on the map. They don't look like much, but hit one of these babies at an angle, and you'll feel like you're at the X-Games.. no joke. backflips, mctwists, flat spins, and mad height
http://haloscreenshots.net/gallery/7DE70492662DFB3BB50B7BA7DA9AB9B1/

The Graveyard (about 10 double boxes merged into the ground at different heights and odd angles)
http://haloscreenshots.net/gallery/25A0352B4C5C78D14FC1AA42A2D1237E/

The Spine, with the bridge in the background
http://haloscreenshots.net/gallery/A1D45973786AA30C6841B4B09829A9E6/

The Bridge connects to two peaks of the largest valley on Sandbox. Receiver nodes help guide your goose in the sandbox night and align you correctly for bridge traversal. Tread lightly.
http://haloscreenshots.net/gallery/B72E3E1A165FD7AEB19798C3CCBD7D10/

Man Cannon jump off of the tallest ridge (near chopper spawn #2, seen below)
http://haloscreenshots.net/gallery/800C57F73EDDB90AAA7A7343E3290507/

Cat's cage prior to 30 seconds

Cat's cage after 30 seconds

Chopper spawn #1

Chopper spawn #2 atop one of the highest ridges

Rat spawn (dead center of map)

Flat ground layout. Nothing impressive, yet effective.

Couple shots from a Last Man run

Download Desert Rats (required gametype)
Download Death Valley (map)

Big thanks to testers...was a ton of fun. And thanks to Alex RFW for his badass canvas.