TauMinded wrote:Etherials don't have drone controller and where did BS5 come from?
Each Firesight Markesman (Markstau?) has BS5 and a drone controller, which is the trick that makes this a 2 way synergy.
I can't speak to its effectiveness in 7th edition, but I thoroughly enjoyed this pairing at the centre of a 6th edition firebase. The 2 extra BS5 markerlights are gravy compared to the survivability boost to the ethereal. I suspect it is more of a trick to remember when the terrain and opponent suit it, rather than the core of a list though.
It makes me nostalgic for the first Tau codex, where ethereals made great companions for broadsides - the ethereal gained majority toughness and armour boosts and the suits gained LD10 for Target Priority tests