Dole out 5000 total Survivor damage as a Special Infected. - Left 4 Dead
Leave a safe room to save an incapped teammate and bring them back safely. - Left 4 Dead
Constrict two Survivors in one life as a Smoker. - Left 4 Dead
2,576/3,0631,330/1,50059/65
1,474/4,592485/1,00033/67
3,274/3,2741,000/1,00037/37