A enclave crate can now be found inside the Goodsprings schoolhouse. No DLC required.

This adds NPCs and Creatures from all the main DLCs to the terminal. You will need Dead Money, Honest Hearts, Old World Blues and Lonesome Road for this to work. Only use one of the plugins.

This adds NPCs and Creatures from Fallout 3 the DLC. You need Tale of Two Wastelands in order for this to work.