TAK is my only Ariadna army, but I hope they'll look at Ariadna HIs in general and revamp them. VetKazaks are just fine as they are, but Mormaers, Greys, Minutemen or Moblots could use a lifting. If the general shape of crit rules will match with our expectations AP HMGs - and AP ammo in general - will definitely get better. As it is TAK stands to gain the most, thanks to the number of AP HMGs/Rifles/Sniper Rifles we have. The other armies will probably see significant changes, so it's hard to say who gets what.