modded fallout is fun, especially with crits on headshots
the thing is that fallout is really geared more toward 'rpg with guns' then, say, stalker, which is more like 'fps with rpg elements', but stalker is way less meaty and less of a game and more of a misery simulator
if you were to take fallout's base aesthetic and gameplay and adventure-havingness and find a way to set it so that the game is fundamentally tactical fps combat with rpg overtones then you would find either open world deus ex or the perfect fps fallout