Took down 2 enemies with 1 bullet in Night Shift

Fully mod and completely upgrade all weapons.

Find all documents, relics and GPS caches.

Purchase all skills in all categories.

Kill 75 enemies with the rifle.

Kill and loot 10 flying animals (crows and gulls).

Complete all optional tombs.

Kill and loot 10 small animals (rabbits, chickens, rats).

Find 75% of all documents.

Purchase all skills in one category.

Perform 50 headshot kills in the single player campaign.

Force an enemy to drop dynamite that kills two people when exploding.