New List

So, this is what I've been running and it pounds face.

BA and Deathwing get blown away and other Space Marine armies go down quicker than a prom date.

Yes the plasma/fusion units are pricey but ignore Armor save/FNP making them priceless.

Tau @ 2000

Here how it plays:

Turn 1 Markerlight the Big Bads/Transports

Turn 2 Markerlight the unit within 12 of your Plasma/Fusion

Turn 3 Wash rinse/repeat

HQ 1

Shas’el Plasma Rifle, Fusion Blaster, MultiTracker

HQ 2
Shas’el TL MP (+3 BSF
BG TL MP BSF

Elites
Elite Team 1
3x Suits with Fusion Blaster + Plasma Rifle + MultiTracker
Team Leader + Shield Drone x2

Elite Team 2
3x Suits with Fusion Blaster + Plasma Rifle + MultiTracker
Team Leader + Shield Drone x2

Elite Team 3
3xTwin-Linked Missile Pod 1 BSF

1 Drone C (0) w/1 Gun Drone,

1 Flamer

Squad 1 6 Tau Fire Warriors
Squad 2 6 Tau Fire Warriors
Squad 3 6 Tau Fire Warriors
Squad 4 10 Kroot+3 Hounds
Squad 5 10 Kroot+3 Hounds

Fast Attack 1
Pathfinders x4
Devilfish with Disruption Pod

Fast Attack 2
Pathfinders x4
Devilfish with Disruption Pod

Heavy Support
Team 1

2 Broadsides

Twinlinked Railgun (Built in), Smart Missile System (Built in), A.S.S.
Team Leader + Target Lock
HardWired Drone Controller, 2 Shield Drones

Team 2
2 Broadsides

Twinlinked Railgun (Built in), Smart Missile System, A.S.S.
Team Leader Target Lock, HardWired Drone Controller 2 Shield Drones
TL Railgun (Built in), Smart Missile System (Built in), A.S.S.

Heavy Support Slot 3 (2 Broadsides)
2 Broadsides

Twinlinked Railgun (Built in), Smart Missile System (Built in), Target Lock

TL Railgun (Built in), Smart Missile System (Built in), Drone Controller
Shield Drones x2