First off, let me state that this game has been rather enjoyable for the most part. However, I am the type of player that doesn't like to always use the common guns that you always see. I prefer to use things like shotguns or the riot shield. I think we can all agree that there are a few guns in some categories that stand out as being the most used.
In Assault Rifles, you have the Type 95 and the M4A1 due to early unlock and how easy they are to use.
For SMGs, you have the UMP and the P90.
For LMGs, nothing really in particular.
Shotguns, same as LMGs.
Snipers, Barrett .50 cal and L118.
I love to use the Riot Shield, but with the high weapon damage in this game, it makes it very difficult due to the amount of times I have been shot around the shield when only a very small portion of my body is revealed. Basically, if you hip-fire at a riot shield user, you only need to land 2-3 bullets to get the kill. Also, when trying to melee an enemy with the shield, your head is exposed for a split-second and I can't tell you how many times I have been shot in the head while hitting an enemy with the shield. I think that the Riot Shield should be modified to cover a slightly larger portion of your body. There are plenty of other weapons capable of taking out a riot shield user and it's not like you'll really have a hard time running from them so I don't think that it's very fair to be taken out so quickly when the shield should be covering you.
Also, I like to use shotguns. If you haven't noticed, I enjoy close quarters fights and I can't count how many times I've been killed in a very close quarters situation by an SMG while using a shotgun, usually the SPAS. I understand that the damage and range proficiencies significantly increase the lethality of these shotguns, but I think that it's too hard to get kills with them in order to unlock these. I have leveled up my SPAS to level 19 so far and I think it's sad that a one-hit kill seems like a miracle to me. Very often I have to land multiple shots to get a kill and earlier today I actually had to land 5 shots before killing a guy. While that was at a decent range, I was still getting hitmarkers and doing damage with each shot so I think that kinda speaks for itself about the power of these shotguns without the damage/range proficiencies. I think it would be nice to either unlock these proficiencies earlier or make the shotguns slightly better so that getting those proficiencies won't be as much of a struggle.
I know a lot of you will think I'm just complaining about everything and that I probably suck at this game, but I can tell you that I am not a bad player. I've been playing since CoD 4 and I've had quite a bit of experience with FPS games. I can hold a fairly average K/D, but I prefer to use weapons you don't see everyday because it's more fun for me. However, I don't think it's fair that I have to put myself at a disadvantage just because I want to use a shotgun or a riot shield. They are categorized as primary weapons just as the SMGs and Assault Rifles, so I think that they should be just as deadly in their respective roles. I paid $60 for this game and I think it's only fair that I get to play it the way I want to without having to be at a disadvantage.
Sorry for my ranting and the long post, but I appreciate it for anyone who read it and I also appreciate your feedback. Thanks for reading.