I picked up SH4 about a month ago and started it the other night, i think it's the last one left for me to play as i own and have played and finished SH, SH2, SH3, SH: Origins, SH: Homecoming and SH: Shattered Memories.
That aside, i think the game is a bit odd being a SH game, but the atmosphere i top notch and thats what i like. Unfortunately, i'm also the kind of player that likes to explore every nook and cranny and with that said, is there ANY way to kill (permanently) the zombie/humanoid monsters in the Subway world? i beat it with the pipe (4 times + stomped them about a dozen times and more) and then filled them with lead, but they still got back up, none worse for wear.
Not being able to kill what chased me was one of the things that killed Shattered Memories for me, i hope thats not the case with SH4, or that at least these "humanoid monsters" are one of the very few that are invulnerable