黑色行動》兩個祕密成就，《使命召喚7

1.在小電腦輸入ZORK會出現

Eaten by a Grue 15G

play Zork on the terminal

2.用打洞小刀擊落導彈~丟出去的那種

See Me,Stab Me,Heal Me 15G

Fire a Pack-a-Punched Ballistic Knife at a downed ally to revive them from a distance