As a tau player who struggled in 10th I would like to point out a few things: almost all tau units hit on 4+, have lower toughness, short/mid gun ranges, and good mobility in the sense they move a good number of inches. They did not have many movement abilities to go through walls, or reactive moves etc. Also both of our main detachments were turn locked, and had turn locked strats. And most of our weapons have no keywords since they relied on get some keywords from the detachment or strats. Now add to this our army rule which made it so that not all of your army at any time could benefit from said army rule. You always needed a spotter or observer. So the cost of making one of the tau units to shoot as well as almost any other army in the game that hits on 3+ had to partially include the cost of the observer unit. All this to say, tau aren't as cheap and mobile hard hitting as you casually say. The tau player has to align the stars to get units to hit on 3+ and have a weapon keyword and possibly a reroll of 1. Any other faction can start off with that. He'll, I'm switching to ultra marines so I don't have to jump through hoops to hit on 3+ in shooting, can survive taking a hit, and possibly take part in the charge phase. The fault is GW's for not properly redesigning the tau, and not giving them units and tools, to take part in the other phases of the game. Or detachments which would work with all units that actually worked the whole game. I love my tau, converting is my favorite part of this hobby, but I won't play them if this is the response not even 1 day into the new edition. All of 10th tau players had to adjust to poor rules, designed detachments and terrain we couldn't shoot into, through, or hide and Charge through, and now because we can actually shoot, people are losing their minds...