Trap is a defensive tool used to kill enemy inventory. It's effective against rival infantry.
Trap is a device set up to be triggered by an unsuspecting victim. As the word "trap" implies, they usually have some form of bait designed to lure the victim towards it. In other cases, however, the trap is set to be triggered when the victim performs an everyday action such as opening their door. Trap is usually made of wood which cheap in price and easily accessed.