4812622short circuit is legit for pushing the cart, that's what dave+ did on ts and it worked really well, also fucks kritz stickies on koth maps
While it may be useful there, a Wrangled Mini is likely 10x better. Especially since the main cart pushers will usually be Scout, Engineer and Sniper when the combo is away.
I'm mainly thinking of the defensive level 3 though. Wrangler is unarguably superior because not only can you sponge the damage without losing the sentry, but you can fire back - no damage drop off and aim assist included.
capnfapnI've pissed a lot of people off in tf2mix by playing pyro. Here's how I would change the pyro to make him viable in 6v6.
PYRO 2.0
...
MY REASONING BEHIND THESE DRASTIC CHANGES:
I don't think the goal is to make Pyro a full-time possibility in 6v6. The goal is to try and have the majority of weapons be balanced so that mainly player preference and strategy dictate what's used. Not simply because something is viewed as either so good it's necessary (Wrangler and Vitasaw) or straight up broken (Pomson and Enforcer).
Anyhow, concerning your points:
1) Detonator jumps - Yes please, increasing jump height/distance is welcome in my book.
2) Flare Gun/Detonator combination - No. You trade off the reliable high-damage crit flares to gain the Detonator's mobility. The Detonator is good as-is besides my gripes about increasing the jump distance.
3) Passive Scout is more about covering your Demo's back than your combo's back. Beyond that, you clean up what your other Scout and Roamer initiates.
4) A good Scout is the second worse thing a Pyro can face in a 1v1 (only beat out by a really good Soldier). Shotgun is no more a guarantee than Flare. Honestly, if I can stall the little bugger for a moment to burn him, a 90 damage Flare will work just as well if not better.
5) Shotgun on Pyro is for meting out damage on targets beyond your primary's range. You're trading pin-pointed long-range burst damage for reliable mid-range meat shots.
And here's the big one: You're not giving any of the nine classes an extra weapon slot. This is something that will never happen, let alone for fewer than all nine classes.
Remember, while we agree that Pyro might need a minor tweak yet to get him "perfect," we're not trying to form-fit him into 6v6. We're trying to balance and fix all class' weapons in general.