Of course, RPGs are a completely different kettle of fish!
I have to hold my hands up and be completely honest with you. When I was talking about FPS games, it had completely left my head that this is in fact a cross-genre game, a mix of FPS and RPG.
As such, RPG elements like selectable conversations with NPCs fit in perfectly. As for the thoughts of the player character, again, as this is a cross-genre game, putting the player character's thoughts on screen in the form of text, again, is perfectly fine.
However, I'm still not sure about adding voice overs for the player character. In an RPG, it's fine to give the player choices of what they want to say, and giving clues in the form of thoughts etc, but I still don't like the thought of having the player character's voice dictated to the player.
An RPG, by its very nature, is an extremely immersive form of game genre, so, in some ways, it is even more important that the player uses his/her own imagination when thinking about what the player character sounds like.
Again, please don't think that I am trying to tell you what to do in your game, it is your game after all. I'm just giving my own opinions on the matter
About the videos, I've watched them a couple of times, which means it was extremely amiss of me to make assumptions about this being an FPS game, instead of the cross-genre game that it is! The videos just make me even more eager to see this game completed lol
I game therefore I am.