Welcome to the "CryENGINE 3 Developers" group . The CryENGINE 3 Developers group is all about creating levels, mod, Total modifications, addon's, machinima videos, Indie games, using Sandbox3 for Crysis or using the free standalone CryENGINE 3 SDK tools.
No game can do without a rat map. This one is called Toy Wars. Made by 3rdHalf :
Crymod.com
Also an interesting screenshot for those who want to see how CryENGINE 3 AI works.