Arena FPS / Rogulike Hyrbid?

I'm propably gonna get flak for this (haha pun intended.) but here me out, imagine a base game of 10-12 really good maps, for dueling, ctf, strict and balanced weapons, etc. but the rest of the game is ai generated/roguelike, following strict guidelines, where weapons, maps, etc. for that match are rng (What I mean is, for that specific match the whole time, so a shotgun could end up being, a flak style weapon, quad ssg, autoshotgun, etc.), but still follow balancing rules. It would make every match fresh and interesting & you wouldn't have to worry about that one guy who's been playing Quake/Unreal Tournament for 20+ years memorizing the maps, it would still take skill cuz once they learn the current map, spawns, powerups, etc. they would still win against people who don't have those skills. Thoughts or am I just being an idiot?