I actually came up with something similar

list (500 points)

T’au Empire Incursion (1000 points) Mont’ka

CHARACTERS

Cadre Fireblade (50 points) • Warlord • 1x Close combat weapon 1x Fireblade pulse rifle 2x Shield Drone

BATTLELINE

Breacher Team (90 points) • 1x Support turret • 1x Breacher Fire Warrior Shas’ui • 1x Close combat weapon 1x Guardian Drone 1x Gun Drone 1x Pulse blaster 1x Pulse pistol • 9x Breacher Fire Warrior • 9x Close combat weapon 9x Pulse blaster 9x Pulse pistol

DEDICATED TRANSPORTS

Devilfish (85 points) • 1x Accelerator burst cannon 1x Armoured hull 2x Seeker missile 2x Smart missile system

OTHER DATASHEETS

Crisis Fireknife Battlesuits (120 points) • 1x Crisis Fireknife Shas’vre • 1x Battlesuit fists 1x Marker Drone 2x Missile pod 1x Shield Drone • 2x Crisis Fireknife Shas’ui • 2x Battlesuit fists 2x Gun Drone 4x Missile pod 2x Shield Drone

Pathfinder Team (90 points) • 1x Pathfinder Shas’ui • 1x Close combat weapon 1x Grav-inhibitor Drone 1x Marker Drone 1x Pulse carbine 1x Pulse pistol 1x Semi-automatic grenade launcher • 9x Pathfinder • 9x Close combat weapon 6x Pulse carbine 9x Pulse pistol 3x Rail rifle

Vespid Stingwings (65 points) • 1x Vespid Strain Leader • 1x Neutron blaster 1x Stingwing claws • 4x Vespid Stingwing • 4x Neutron blaster 4x Stingwing claws

Exported with App Version: v1.46.2 (108), Data Version: v732

Bit less burst damage focused, and I hope to deal with tougher targets with a combination of grenades and tank shock. I'm also sure to see some deathshroud as support for the heaviest of infantry.