I may have given the impression that i dislike the game, but i have to say that this is not the case, i have enjoyed it as a shooter. I have just been greatly frustrated by some of the elements which imo only need changing slightly to elevate this game to approaching classic status tbh.
As a shooter it is great and i suppose that you could view anything else as extra, as it offers more than you get in most shooters nowadays, but even the addition of a simple levelling system, or something along those lines would greatly improve the game imo. It would certainly give you more of an incentive to do the side missions. Also if the world were more interactive and there were less invisible barriers or locked doors it would relieve some the feelings of restriction which i find i have when playing.
Also, and this is just me, i am all about story in games and i think if there were a little more care taken over the story in terms of characters(none are memorable, or even seem to be important) and if it were maybe a bit more cinematic then i would probably love this game.
Overall it is a good game, but i find myself incredibly frustrated that with not much more work(or finesse?) it could, and probably should have been spectacular
Yeah lack of levelling system does make the RPG elements messy and not very satisfying. Invisible barriers are annoying but the locked doors afaik are actually extra stuff you unlock many of them with side missions, return trips, secrets, etc. i.e. one of them later on you can see the other side of it through a small crack and can shoot some gas cannisters behind the door to destroy the door and go back grab goodies.