Attempt "The Rescue" and survive.

Complete all U.S.S. missions on Veteran.

Kill 50 enemies with the AK-47

Find the Strange Relic

Find 15 treasures

Kill 30 enemies with headshots

Kill five enemies in a row with headshots

Kill 10 enemies with headshots

Find one treasure

Follow orders and defeat all liabilities.

Purchase 5 weapons.

Kill an enemy with each weapon type including special weapons.

Kill 13 zombie dogs (lifetime)