personally, I like two cities the best, but gear grinder is also pretty good.



thats it. those 2. if you want to practice, queue into bootcamp mode instead to screw about with loadouts.
BUT some other missions can also work. experiment with strats in bootcamp, then go to Mann Up

HERE IS THE LIST OF THE ONLY WEAPONS YOU WILL NEED (probably. if you want to change it, look it up on youtube)

Primary

Stock Flamethrower - good all rounder, but ppl hate you if you airblast. but if yer up against critical explosives or bosses and dont wanna die, use this and push them about, but not too much so your heavy or sniper doesnt get angry.

Phlogistonator - best on tank waves. another popular choice. free crit canteens, essentially.but you are a lot more vulerable to projectiles and cant push bots away from the hatch.



Secondary

Gas Passer - the only one you'll really ever need. just buy the Explode on Ignite upgrade and you'll be on your way to win town. also very good at upsetting people that dont like pyros doing high damage lmao

Detonator - for the cowards who dont use the gas passer.

Flare Gun - surprisingly OK. but compared to the gas passer its not really needed.


Melee

Homewrecker - only useful for spy waves if your engineer cant turn around.

Third Degree - versatile and doesnt have downsides like other options, and you dont need the powerjack with run speed upgrades.


Canteens

just use the UBERCHARGE or CRIT canteens. other 2 dont come into play often.



as for other weapons, they're either useless or dont fit well with MvM. sure, use the Dragon's Fury on tanks and boss waves if you want, but other than that its not the best flamethrower for general use.

just try staying behind the robots so they dont aggro onto you, or you can do crowd control and blaze them to death while holding a choke. but dont just chuck your gas, run in, and die since it barely helps. try to help as much as possible. stick near your team, and burn sentry busters to help build up your GAS meter so you can throw it more.

Weapon Upgrades

Primary
+25% damage - max it the hell out
+50% ammo capacity - max it the hell out
+25 health on kill - max it the hell out
ignore the rest.

Secondary
Explode on Ignite - first thing you do, buy this for the gas passer.

Melee
none needed tbh, except maybe a tick or two of faster swing speed on the homewrecker.


Class Upgrades
+25% bullet resistance - max it the hell out
+25% blast resistance - max it the hell out
+25% fire resistance - max it the hell out
+10% run speed - 2 ticks
+30% crit resistance - max it the hell out


Canteens
Ubercharge - use early game, especially if you plan on dive-bombing into hordes or 1v1ing big robots.
Crits - use on tanks and bosses to melt them like butter. best paired with maxed out flamethrower.

Tacobot and other toxic high-tour players will absolutely hate you for playing pyro. so, here are my suggestions for dealing with them:

• 1. ignore them. go into the menu, select to mute them, and maybe while you're at it, kick or report them. they're manchildren, you dont have to listen no matter how much they get on your nerves. if they decide to be petty and prevent the game from continuing by using a bot or something, use my 2nd suggestion
  
  
• 2. Leave. that it, just requeue and leave ASAP. no buts no whats no coconuts. just leave and be happy. have fun somewhere else, its easier than suggestion 3.
  
  
• 3. argue with them and try to convince them to let you play how you want. it rarely works, so if it doesnt work, vote kick them or just do suggestions 1 or two.

that concludes my ideas, comment yours if you have any.

thank you for looking at my guide, I'll probably update it. I put lots of effort and love into it, and I hope this helps new pyro mains of MvM who aren't familiar with the meta. okay bye thanks for reading!