Someone made this in SFM

I spent all of the first chapter annoying all of the NPCs and constantly talking to them just to hear all of what they have to say
I love all of these voice lines and conversations, this game is absolutely beautiful, in one playthrough, i've made it to Blast Pit
Not crazy over the soldier voices, they sound too... unconvincing? I'm not sure what the word i'm looking for is, but they just don't sound right