Reach rank 5. - Zombie Army 4: Dead War
Complete Dead Ahead on any difficulty. - Zombie Army 4: Dead War
Kill 3 enemies with one blast from a Preacher. - Zombie Army 4: Dead War
89/3,22175/1,1005/61
3,013/5,163615/1,00035/56
1,595/1,5951,000/1,00010/10