Re: Multiplayer Gaming
I can see it now: TF2 is going to be populated by Heavies, Soldiers with Battalion Backup, and Medics. Maybe some Scouts wearing the new gear on CP maps.
Soldier Updates:
-Set Bonus: Eh. Good for breaking an enemy team's defense if they're holed up at a point on Payload or CP if a couple of Soldiers have it.
Of course, I say a couple, but it would probably only take a single skilled Soldier, who's able to do that with vanilla stuff already anyways.
-The Black Box: Eh. Everyone uses Equalizer. This just makes it take that much longer to get the Equalizer to the 1-hit-kill point.
-Battalion's Backup: Even if the aura doesn't stack, this can make a Heavy/Soldier combo VERY difficult to take down. Unless you're a Spy, of course. Unless the back-stab counts as a crit. Which it shouldn't.
-Hat: More hats = always good.
Scout:
-Set Bonus: WOW, A WHOLE 25 HEALTH! GEE GOLLY, THAT SURE IS SWELL!
=.=
Well, I say that now, but watch a shit-ton of Scouts get away simply because of the health increase.
Just to die 5 seconds later anyways.
-Mad Milk: I'd have to see this used in-game. Is it just the Scout that heals? Does it heal everyone who hits the affected enemy? Do you have to hit the enemy to get the heals as the Scout, or can you just toss it and let a friendly Heavy light them up to heal you?
-The Shortstop: How severe is the slow? Natascha-level severe, or half that?
Either way, I can see people calling for some sort of nerf to this already.
-Hat: See: Soldier, -Hat
-The Holy Mackeral:

Ah, but yeah. level 42 fish? Does that mean more damage than the vanilla Bat, or is that just flavor text?
Pyro:
-Set Bonus: Seems balanced to me. More speed, but take more bullet damage.
Of course, that comes at the cost of using the items...
-The Degreaser: 65% faster weapons switch at the cost of 25% less burn damage? Seems like it would work nice with the Axtinguisher, otherwise not so good.
-Hat: YAY.
-The Powerjack: On its own, okay. If used on someone that's been Jarate'd, MASSIVE DAMAGE. Plus you get health back when you kill someone. Amount of health regained might get nerfed.
Sniper:
-Set Bonus: So, does that mean headshots don't count at all, or just don't do the bonus 'headshot' damage?
-Hat: YAY.
-Darwin's Danger Shield: If you're going to use the Sydney Sleeper instead of the Jarate Jar, okay, fine. Maybe. If you're not using the Sydney Sleeper, meh. I ike my jelly jar.
-The Bushwacka': Pyros will murder you, but then again, if you have the Jarate Jar, you can put those flames out anyways. Seems fine to me now, but I can bet enough people will make this weapon look OP.
-The Sydney Sleeper: Nice for if you want to use the Bushwacka as often as possible, since the jar does have a CD. Also seems like a decent support item, though if you're going to be sitting back, you might want to use the entire set, so you're not insta-sniped by a counter-Sniper.
Spy:
-Set Bonus: Really. A decrease to decloak sound volume and a .5 increase to 'claok blink time', which I'm assuming means it takes .5 seconds to go into and come out of cloak, or at least go into cloak. Is the sound really that big an issue?
-Your Eternal Reward: ..... Really?
*sigh* I'd like to say it's shitty, as any AWARE team is going to notice that the person died, but then I remember the countless times I've seen a vanilla spy stab an enemy, flip open the disguise book, take the victim's identity, and be alright up until the victim spawned as a Pyro and lit them up.
-L'Etranger: Kinda good, kinda bad. Depends on how you play.
-Hat: WOOT, FEZ!
All-in-all, the new class items are as they should be: situational.
Now, as for the MANN CO. store..... Jebus Chrispies. I mean, I can see why they did it, but, really..... Jebus Chrispies.