Kopikatsu said:
But games with ADS do seem to have more satisfying gunplay overall for whatever reason.
It seems to me that games that have "good" gunplay (strong kickback, good recoil, nice reactions on whatever you hit, etc) tend to be more "realism" focused, or, to put it more bluntly, are for gun nerds. They have to get the guns "just right" so that the people who care about guns will not complain or call it fake, and one of the most important things for this kind of thing is the ability to aim down sight, as people more familiar with guns will tend to have more accuracy doing so. Sights are actually much more accurate, it just takes some getting used to (not that I blame you for not being able to, I can't use sights in games very accurately myself).
And if you hate the gunplay in Left 4 Dead, then you must really require some high-end gunplay, because L4D is oftentimes considered one of the better gunplay games there is. And while I can't play that game for crap, I love the feel of a good pump-action shotgun in that game.
Please correct me if I'm wrong, but you seem to be looking for:
-"Solid" gunplay
-No Iron Sights
-Slow to moderate pacing
-No (or limited) vehicle play
-Realistic (read: human-esque) opponents
Honestly, your tastes are quite restricting in this matter, as I'm not sure there exist too many games like that. You're really asking to fill a lot of niches at once that usually get filled one at a time. I wish you well on your endeavor to find what you are looking for.
And finally, my two cents on the whole ADS thing? I've never heard the acronym before. And, phoenixmsgs, I've never heard of OTS or even TPS before. Now, looking at those of us who don't recognize the acronyms tend to have much lower post counts. Not saying it's an escapist thing, rather, I theorize that the acronym escapes those of us who rarely post or stalk forums, and rather play the games themselves. It really does seem to be more of a forum thing than in-game.