Milk Shot should apply milk for 10 seconds instead of 15.

Informer should mark targets for a time correlating with the distance of the shot (if possible) so you cant just shoot across the map. Mark time should also be decreased to a maximum of 30 seconds.

Doesn't Heavy Artillery do less damage than a stock sentry because of its fire rate?

Boost PDA should be changed to 10% more movement speed because you never really need to destroy buildings most of the time.

Worst Case Szenario should lose the bonus ubercharge rate since its ability alreayd makes up for its slower fire rate and it's overkill.

Wow, the Medispenser, it's a good idea but imagine an Airstrike soldier ubered with this. It should just be a 25% bigger clip.

Real Overdose should just be removed lol.

Leviathan for heavy should lose some ammo for every projectile it shoots down (like 40).

Doom Bringer should just not have the 25% chance to ignite enemies because you could just shoot multiple times making it 100%.

Mann Snack should be able to drop and give to enemies, but only gives them 50% of normal heals. There should also be only 2 mann packs on wearer.

Sentry Booster for engie should definitely be nerfed, you could just have it out while standing next a dispenser/medic or at a resupply locker. The -15 health per second should be on the sentry itself changed to -20. The gun itself should have a downside, like 50% less clip size.

Defender should be 20% less accurate so its not super annoying to fight.

What is the point of the Fast fix? It's worse than the rescue ranger and the wrench does everything it can do.

Old Reliable is basically the pre-Gun Mettle gunslinger but much more broken. You can instantly put lv1 sentries down and move them around. My suggestion is to make the sentries immobile like the eureka effect and make the cost of sentries to place 200 metal. So you can insta place them somewhere you need to but cant just spam them everywhere.

Brute Force for demoman melee should have a 20% longer weapon switch time passively, since you can just use it to run away really easily or get to the point so much faster. And maybe even decrease the 40% movement speed to 20%.