Additional Suggestions:
Have Charge 'N' Targe gain bleed damage resistance.
Magnetic Suggestion: Add ability to disable sticky bombs in a small radius. (Radius would be just outside the explosion radius of a stickybomb) ((Would not apply to mid-air stickies, only placed ones.)
Have the Flying Guillotine/Cleaver recharge in 10 seconds instead of 6 to prevent intense spam.
Decrease Black Box Ammo to 10 instead of 20, alternatively, have the black box cost hp to fire a rocket to prevent abuse.
Increase Detonator Explosion Jump Height to make it more useful.
Increase Bleed Time on the Tribalman's Shiv to increase its ability to be useful, and while bleeding, zombies have 20% reduced speed.
Athletic Suggestion: Lower uber gained per hit to 10% instead of the normal 25%, all other perks with ubersaw are fine, this is to prevent chain medic uber abuse. ((Addendum: While the ubersaw is out, disable the ability to be healed in general, to prevent the use of ubers to build more chains))
Hitman's Heatmaker: Upon fully charged headshot it's an explosive headshot which inflicts 50 damage to every zombie nearby with 3 secs of 5 damage bleed, charge is 20% slower than normal, focus effect remains normal. (None of the explosive effects while the focus is on) ((The Explosive Headshot is constant in its damage, damage buffs and debuffs along with defense do not affect it))
Pyro Class Suggestions:
Change the Flamethrower Ammo Limit to 150 instead of 125
Backburner: 50% stronger airblast due to the ammo consumption
Sharpened Volcano Fragment: Stock Damage, Lights Zombies On Fire, 7 seconds of bleed damage, penalty is 30% slower swing speed.
Third Degree: 20% faster healing while deployed, -20% damage, 100% crit on recently healed zombies. (Sandvich use, or health pack, not the automatic regen)
*This should be the last list*