Silent Hunter 4 : Wolves of the Pacific (PC-DVD) Experience The Thrill Of The Hunt! Command US sub classes: Tambor, P-class, S-class, Salmon, Gato and Balao. Hunt, Hide and Kill in historically accurate naval battles of epic proportions. Innovative crew experience: earn upgrades and experience to guide the evolution path of crewmembers. On-line co-op and adversarial mode. Join forces with up to 8 friends.