Yes its better than Team Fortress, and better than Duke Nukem as far as co-op team play goes, mostly because you're in close quarters going room to room like a SWAT team having to clear our baddies, and if you don't stick close together then you can get separated from the group and the whole team inevitably will fall like a table once enough legs go missing - the team can survive if one player of the four dies, but almost never survives if two die. So there's a unique formula of constantly having to have each others' backs in sometimes dark rooms with only a flashlight cone worth of light - makes for an addictive replay factor.