Find 75% of all documents.

Find 75% of GPS caches.

Collect 75% of all relics.

Purchase all skills in one category.

Kill 25 unaware enemies.

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

Perform 50 headshot kills in the single player campaign.

Find 25% of GPS caches.

Perform 15 finishers.

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

Kill and loot 10 large animals (deer, boar, wolves).

Apply 4 different Mods to a single weapon or Warframe.

Get 100 kills in a single mission.