The Ice Cooler
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=311025350&searchtext=
Engineer Pistol (Bison base stats)

Pros:
Shots bison proyectiles wich slow down by 30% for 2 seconds
+25% Faster projectile speed
Doesn´t requires ammo
Cons:
-34% Clip size
-40% Slower reload speed
-50% Damage against buildings
No random critics

Is something like a bison, but it is used more for support rather than for fighting (even with the damage bonus), and the victims will learn that the person who killed him...... (see video):
https://www.youtube.com/watch?v=D8cCQfgByoY

The Heavy Artrillery Shotgun
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=91231222&searchtext=
Heavy Secondary

Pros:
On hit: Gain +10% damage, up to 50% extra damage, this is reset on reload
+30% Fire rate while porter is under 40% health
Cons:
On miss: Lose stacks
+20% Slower deploy rate
No random critics

How about this weapon (Resubmitted 4 times)

The Riccatinni Barrel
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=636601370&searchtext=
Scout Primary

Pros:
Deal damage to fill "Frenzy" mode
Press alt-fire when full for activate it, when done, you gain +50% fire rate, and +40 faster reload speed on weapon for 5 seconds
Frenzy fills with 300 damage
Cons:
-35% Damage
-34% Clip size
No random criitcs

The Heavy Artrillery Shotgun
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=91231222&searchtext=
Heavy Secondary

Pros:
On hit: Gain +10% damage, up to 50% extra damage, this is reset on reload
+30% Fire rate while porter is under 40% health
Cons:
On miss: Lose stacks
+20% Slower deploy rate
No random critics

The Heavy Artrillery Shotgun
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=91231222&searchtext=
Heavy Secondary

Pros:
On hit: Gain +10% damage, up to 50% extra damage, this is reset on reload
+30% Fire rate while porter is under 40% health
Cons:
On miss: Lose stacks
+20% Slower deploy rate
No random critics

Turburner
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=93505372&searchtext=
Pyro Primary

Pros:
+20% Speed while attacking (or w+m1)
Airblast knockbacks wearer
Cons:
+100% more ammo consumption rate
-15% damage

The Re-Injector
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=634068461&searchtext=
Medic Primary
Crossbow Base stats

Pros:
50% Lifesteal
Cons:
Cannot heal teammates
-40% Projectile speed

Heavy Artillery
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=634665040&searchtext=
Demoman Primary

Pros:
100% Accuracy
+40% Proyectile speed
Keep Pressed Alt-fire for charge shot, after 4 seconds, it deals 40% more damage and 20% more explosion radius
Cons:
-75% Clip size
-50% Slower reload speed
Bombs shatter on surface hit

The Cable Robber
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=345318403&searchtext=
Engineer Shotgun

Pros:
On kill: Summon a R-CAT MkIII
You can only have 1 R-CAT MkIII at time
R-CAT is lost on death
Cons:
-50% Clip size
Disables sentry
On shot: -20 metal

R-CAT MkIII
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=218682818&searchtext=
Stats:
25% less health than sentry
Can be designed to seek you or stay in place, by pressing alt-fire when pointing to it
Very fast (scout speed)
Deals 35% less damage at lvl 2
Throws 50% less rockets at lvl 3

The friend ´ll seek you to all Texas

Weapons that weren´t said if they are balanced/cool/UP/OP/etc, now, I´ll submit´em again, here there are

The Lobbed Hoarder
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=618813577&searchtext=
Demoman Primary

Pros:
+50% More push force on charge
Knockbacks on direct hit
Cons:
-55% Blast radius
Mini-critics intesead of critics


The Wrangleburner
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=1212158&searchtext=
Engi Wrangler

Pros:
Deal 5 damage each 0.25 seconds to enemies pointed by the wrangler
Cons:
No shield
-30% Slower deploy
-25% Weaker shield

The Reposted Bag
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=500449232&searchtext=
Soldier Primary

Pros:
Damage destroys sappers
Each 100 damage dealt gives you 1 ammo
Cons:
-25% damage against players
-25% Clip size


The Resort Bouncer
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=116770715&searchtext=
Pyro Primary

Neutral:
Press Alt-fire for alternate between different modes:
Not Resort:
Normal stats
Resorteable:
Knockbacks on hit
-40% damage
Dangereable:
+20% Movement speed while active
+20% Damage vulnerability while active
Healtheable:
On kill: Restore 50 health
On miss: Hit yourself, idiot
-33% Fire rate
Cons:
No random critics (To all ones)

All feedback is appreciated