It's being worked on. Couldn't find anything about resurrecting and enlarging people, then replacing one of their arms with a weapon they can control through some kind of synapse connection though. Anyway, what I'm trying to say is that you can't really talk about realism in a game with fleshpounds, crawlers, sirens and scrakes. None of them are even remotely realistic. They're all weird, mutilated zombie monsters from a horror movie. And nothing that could ever exist in real life. It's like watching Star Wars and complaining about lightsabers not being realistic.My idea about stalkers was geared more towards the gameplay and immersion aspect. I remember that the invisible mutants in Stalker (the game) gave me the creeps because you never knew where they were, you just heard them. The atmosphere in Stalker is of course different than in KF, but I think in some levels it could work for KF as well.It's just a suggestion.