Ok, Scizor wants Superpower over Brick Break as it hits Magnezone and Heatran a lot harder while Brick Break just isnt strong enough. I also suggest a bulky spread of 248HP/252Atk/8Spd, CB Scizor isnt meant to be speedy, thats what the SDer wants to be, the HP Evs give it a lot of bulk and with its useful resistances due to its steel typing, this will help your team out.
For Infernape, I suggest Fire Blast over Flamethrower as the extra power is welcomed. You may want to consider making Suicune a Offensive Calm Mind sweeper as that will make it a lot more deadly and Gyarados will often come into Suicune only to be destroyed by HP Electric while at the moment when you swich in Porygon2, they just switch out. As for the moveset, this is it:
Suicune@Life Orb
Timid/Modest nature
Pressure
Evs-4HP/252Spd/252SAtk
-Calm Mind
-HP Electric
-Ice Beam
-Surf
Might not have recovery but a very good sweeper for an offensive team like this. Timid or Modest depends on whether you want to be faster or stronger.
I feel with an offensive team Bronzong is not the best lead, maybe consider Metagross or Azelf, these are the sets:
Metagross@Occa Berry
Adamant nature
Clear Body
Evs-252HP/236Atk/12Def/8Spd
-Stealth Rock
-Bullet Punch
-Earthquake
-Explosion/Meteor Mash
One of the best leads, gets off SR pretty much every time. Earthquake, Occa Berry and Bullet Punch takes care of Infernape leads and Heatran leads that dont run Shuca Berry but sadly most do. The last slot is up to you, Explosion means it can go out with a bang and it OHKOs Swampert and has a possibility of OHKOing Hippowdon. Meteor Mash can be used though as it means you can beat Azelf leads as Bullet Punch is only a 3HKO.
You could use a Double Screen Azelf lead to help your sweepers set up:
Azelf@Light Clay
Jolly nature
Levitate
Evs-252HP/4Atk/252Spd
-Stealth Rock
-Reflect
-Light Screen
-Explosion/Taunt
Stealth Rock is vital for offensive teams, dual screens to help your sweepers set up. Explosion or Taunt depends on whether you want to go out with a bang or stop slower leads from setting up and due to screens Hippowdon and Swampert would be set-up bait.
You do have quite a large Lucario weakness as once Scizor takes something out with Bullet Punch or Pursuit, if Salamence is down or weakened its pretty much gg. I suggest replacing Porygon2 with Choice Scarf Rotom-H as it also deals with Gyarados, finishes off weakened Salamences but most importantly makes Lucario cry, this is the set:
Rotom-H@Choice Scarf
Timid nature
Levitate
Evs-4HP/252Spd/252SAtk
-Trick
-Shadow Ball
-Overheat
-Thunderbolt
Thunderbolt deals with Gyarados and finishes off weakened Salamences, Overheat destroys Lucario and Scizor, Shadow Ball hits ghosts and Latias while Trick cripples walls, this can also help Salamence set-up as it will often be nabbed by something like Tyranitar with a choice locked Pursuit which Salamence easily sets up a DD on.
EDIT:You say Heatrans a problem so you could use Rotom-W as Hydro Pump will decimate it and you can still finish off weakened Lucarios with Thunderbolt.
Hope this helps and Good Luck with the team :)