A good Fareye always beats a good Marksman. Auger's shield (which is broken by itself) + the ability to clearly see people through walls and shoot them is very broken, plus the 40 of the carbine is plain ridiculous. Bullseye is pretty much an inferior wraith that trades shield and range for like half a second faster killing, tags that are just for noobs who can't aim, and no start up time.
Not to mention Hedgehog nades literally shits on the other two and your nade pick is tied to the weapon you pick.
The only weapons that can kill in one bullet in WaW is BAs (which have large recoil, reload times, and small clips) shotguns (naturally, I've never played a game where a shotgun shell doesn't OHKO at close range. owait nm hi R2), and MP40, but only if you use stopping power and it's a headshot. And you can easily dropshot out of the way of intended headshots.
And I'd also say a BAR or other crap gun stands a lot more of a chance against a MP40 than a Marksman against a Fareye, or anything against a 40.
You know just as well as I that the marksman has advantages over a fareye on closerange to midrange. It's a backup teamgun to wound and finish targets that also stands a chance in close combat and is alot more mobile.
The rest. Yeah you mention one has some stupid advantage to inferior... But inferior also has stupid advantage. It's really not that imbalanced.
Yeah i agree a good BAR user has a chance against a good mp40 user. Especially if we play "****" (lol). As i said one bullet kills with any gun. Of course all guns have a chance at killing eachother. Depending on the range though a marksman also has a chance against a fareye. Even when they both see eachother at the same time it can be hard for the fareye to aim at the head if his scope zooms too far in (and must be even harder now if it's true that aim assist is reduced), and even on longer ranges it just takes for a good marksman to see the fareye first to be able to kill him.
Freez: The longer scopemode the fareye has is better than the marksman's secondary fire. If i could get that zoom on my marksman instead of the orb, i'd put it on instantly

Bullseye has LESS range than the wraith.
The shotty is better than the splicer if the user is good with it. Even after patch it just takes a little adjusting to actually start using the primary fire instead of pistol. Rossmore is the only gun that actually is able to kill the wraith in close quarters even if the wraith is used to perfection. I personally prefer using invisibility or adrenalin boost on it (i know!) *posts vid where he ironically has 2 instances of weird rossmore hit detection on wraiths lol*
Notice how it is a wraith and an auger that kills me this game hehe.
</facepalm at everything you just said>
Fareye is better than MM in every situation. 1 headshot kill>2 headshot kills. Not to mention MM only 2HKOs if its burst all hits (it has a crappy and sporadic spread). The secondary fire can be destroyed, and Fareye has OHKO potential at any range which I find far superior to the orb.
You have to lead and time your shots with Auger wall shooting, simple as that. GreedTEC, best Auger I've played, consistently 5-6 shotted ppl and if they somehow lived he'd toss a shield and run away. Auger=broken
Carb only does 10xp if you can't aim and get chest shots. Headshots kill in like 4shots from it.
How the hell is airfuel nades any good? Not only does it take longer to detonate but it makes a loud beeping noise for whatever people haven't noticed it after 2-3 seconds. Much unlike the silent, near instantly detonating hedgehog with large blast radius
Then all FPS games must be imbalanced because snipers are often that way. If it wasn't for the aim assist this would actually be one of the harder ones to one hit kill in with the snipers because the targets have so small heads. As i just said the fareye does not have an advantage in every situation, but yes if you want a high K/D ratio online then i suggest to people they go for the fareye as well no doubt about that. Yes auger is ridicilous if the user is good. You do remember both auger and wraith is banned (or bannable) on gamebattles right? You also know that CoD also have weapons and perks that can be turned off for gamebattles. Looks to me like it has the same problems
I like how you forgot about shotgun for CoD also being one shot kills btw. You didn't even remember the gun existed, if that doesn't say inferior then i don't know what does. (I know you said one bullet, but come on

)
Carb kills in 5 shots with headshots only, but you make it sound alot easier to do than it is. Carbine isn't anything special, it has a little range over the other automatic guns, but kills slower (always kills slower), and is outgunned by the marksman when you get outside the range of the other automatics.
Air fuels are good because of lack and bad indicator. I often killed 5 nades with one air fuel and i'm positive it was because it didn't show on their screen, as i know i experienced getting suddenly killed by an air fuel many times xD