Survivalist is the class that has important perks from all the other classes so you basicly become a mix between a medic and a commando for example. However it's lacking in both so nobody really plays it.
I played both games (kf1 way too many hours lol), but I enjoy kf2 the most because of more variation to classes. I do wish they were faster with adding weapons to the game though. Whenever they do the weapons either come out rubbishly weak or crazy overpowered.
The survivalist class is a joke...
Been playing Tekken7 since 2 days ago, I got reminded why tekken is the lead fighting game out there.
Other than that I play CSGO, LoL(killme) and Killing Floor2