Hi Dakka,
My friend plays Tau and is having a tough time beating his Space Marine rival (who to my knowledge runs
FW Raptors, with a Dreadnought Contemptor, a flyer (forget name), bikes, snipers and tacticals with rhinos and a vindicator(?)).
He currently has:
Crisis Suit Commander
Cadre Fireblade
Around 20 Warriors
Around 16 Kroot
12 Pathfinders
Lots of Drones that can be a proxy, our FLGC allows this
3 XV8 Crisis Suits
2 Riptides
2 XV88 Broadsides
3 Hammerhead/Skyray Gunships that can be used as Devilfish
and a
FW XV9 of which I don't know rules but it has two Twin-Linked Burst Cannons I think? ( I faced off against it once).
I also have a few Fire Warriors, Pathfinders, Devilfish and 3 Stealthsuits he can borrow (I found my brothers old Tau models

)
He's currently runs a buffmander with no weapons attached to a squad of 8 gun drones that ignore cover, reroll to hit and can have monster hunter, tank hunter and all sorts of special rules (the signature systems elude me).
He also runs the bare minimum of Fire Warriors for Troops and uses HBC Riptides with
FnP, as well as however many pathfinders he can fit in.
Could any Tau Veterans/Players compose a list that might do well against pretty much any army, let alone the Raptors list? And how should he utilize this list? He currently plays a very static gun line Tau.
Eagerly await your replies