http://gmod.gamebanana.com/maps/180453 A good size map with traitor traps and a little easter egg that spawns in a creature that attacks you. The creature only stays for about 5 to 10 seconds but he can do a lot of damage. I downloaded the map and ran around it for a bit and it seems like a really good map and could be really fun.
The creature is only activated by placing a baby doll prop on an altar. The only thing that needs to be done is taking out that prop so the easter egg can never be completed. Even if the creature is left in, maybe make it a traitorous act to be holding that prop similar to holding the axe on rooftops? Also, there is only one spot where the prop spawns and the room is somewhat hidden and serves no real purpose other than to hide the prop. So, if someone enters that room, it would be obvious as to why they are going into that room.
