https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=593098770

(+) on hit : reload one ammo
(+) +20% attack rate
(+/-) auto fire full clip
(-) -20% damage
(-) -50% clip size
(-) -30% reload rate

You can shoot as long as you hit, the shoot are forced until you miss

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=634665040

(+) level 4 rocket specialist (direct hit increase blast radius by 15%*4)
(+) 6 ammo in clip
(+) on kill : reload 2 ammo
(-) -50% damage for ammo that explode on timer
(-) -25% blast radius for ammo that explode on timer
(-) -25% reload rate

Another kind of Loch'n'lod would you say ?
The point of this one is more about killing a group of ennemies

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=6195

Souffle du Condamné

(o) On backstab : you mark your target
(+) on alt-fire : unleash a pumkin explosion on marked target (that can kill yourself too)
(+) silent weapon, no backstab sound
(-) on death : mark are removed
(-) backstab deal no damage

What the point of this weapon ? You can stab without getting noticed (but loose disguise)
And you can make them explode on their friends if you have enougth patience
But the pumkin explosion might don't kill heavy/solidier if they are full health

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=646628591

(+/-) sniper charge only when pointed at someone, but charge 100% faster
(+) full charged shot deal mini-crit
(-) -33% damage on bodyshoot

Army of not Many

Special tweak for every class

(+) twice more health
(+) 25% bigger size for user
(+) +20% damage
(-) -30% movement speed
(-) -75% health from anysource
(-) +10 second before respawn

Swap-matron
Sniper rifle for Sniper

(+/-) on hit : swap place with victim
(+) on kill : ubercharge yourself for 3 second (still swap)

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=133242651

Shotgun for campGineer

(+) 50% faster reload rate while healed (by dispencer/medic)
(+) 20% faster attack rate while not healed (by dispencer/medic)
(+) 50% more clip size
(-) -100% reload rate while not healed (by dispencer/medic)
(-) -50% attack rate while healed (by dispencer/medic)

Reload near to your dispencer, then go fight !

Revenghealer
Medigun

(+) on patient death : mini-crit boost for 5 second
(+) on patient kill : give 2 mini-crit second to the patient
(+) give +10% crit chance to all allies in a 1500u range
(+) each ennemies death in a 2000u range give +10% ubercharge
(-) -100% resistance to crit
(-) -25% ubercharge rate
(-) -25% healrate

Ubercharge : Buff Banner with +200% range

The "not healing anymore" Medic

Primary crusader crossbow (ups, I picked ze wrong syringues)
Pantzer bolt
(+) bolt explode 1 second after shooting
(+) explosion deal 150% of initial damage (like 45)
(-) damage arn't increased on distance (like 30 damage)
(-) -60% blast radius (compared to rocket)
(-) -95% ammo carried (8 ammo)
(-) don't heal allies (can still stick to them)

Medigun
Front Tank

(+) 100% knockback resistance while deployed
(+) nearby allies have +50% ranged-damage resistance (in a 800 area)
(-) take 50% of nearby allies damage (it become 25% of true damage)
(-) -100% heal (no medibeam of heal)
(-) -100% ubercharge rate

(+) 33% of the damage took become ubercharge (need to get 300 damage)
(+) at 100% ubercharge everyone in a 800 radius
(-) don't ubercharge yourself, you are the weak point
(-) loose 1% ubercharge each second when lower than 100%

Saw
Final Surgery

(+) +50% damage
(+) allow you to see ennemies healh while deployed only
(-) if the blow isn't fatal, the victim isn't hurt
(-) -30% attack rate

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=18426
"Everything was calculated" (the model is just an inspiration)
PDA for engineer

(+) dealing damage by yourself improve sentry's damage on your target by 50%
you might need an exemple : if I deal 50 damage with my shotgun
sentry will 25% more damage to this player
but this don't stack, if I deal him 10 damage with a second shoot, he will take +5% damage
(+) same for the sentry, it improve your damage by 33% of damage it deal to someone
(-) -25% sentry damage