Yeah, if youre allowed to use those rules...
Tyranids need some sort of invulnerable save, otherwise they can get butchered so fast.
Snipers dont really fit into tau. Just my opinion.
Seer councils are nice, but fully geared-up they are VERY expensive, meaning the rest of his army shouldnt be that difficult. Wipe the rest out, then focus everything on the council. Or try to ignore them, though its hard to, as with augment, that mind war has a three-foot range! isnt that great?
§ilent§torm